Tesla (ticker: TSLA) founder and CEO Elon Musk is tantalizingly close to securing the largest executive paycheck ever. If shares of the electric automaker can go six months with average prices valuing the company at $100 billion, Musk will take in options worth $346 million. Given the fact that even the most well-rewarded CEO in the S&P 500 â€śonlyâ€ť took home $129.4 million in 2018, this would almost certainly make Musk the highest-paid CEO in the U.S.But in the grand scheme of things, this insane payday is nothing compared to Elon Muskâ€™s net worth and pales in comparison to how much money Musk could make in the coming years. The Elon Musk salary: no cash, all contingent. In 2018, Tesla and Musk agreed to a wild, record-setting CEO pay package. Yet, for some reason, the performance plan never received much press. Which is funny, because Muskâ€™s total compensation under the agreement, if all the milestones were eventually hit, totaled $55 billion. Compared to numbers like that, $346 million is nothing. Itâ€™s a paltry 0.6% of the Renaissance manâ€™s potential compensation. Hereâ€™s how it works: The 2018 agreement is entirely performance-based, and spans 10 years. At the time it was struck, Tesla was worth about $59 billion. Musk gets nothing unless Tesla itself does well; the first opportunity for a payday comes if Musk guides the Palo Alto, California-based automaker to a valuation of $100 billion (and maintains it for at least six months). Even then, Tesla also needs to hit certain operational metrics, based on either revenue or adjusted EBITDA (earnings before interest, taxes, depreciation and amortization), for Musk to collect. Then, the enigmatic CEO gets paid in the form of Tesla stock options controlling 1.7 million Tesla shares. To get the full $50 billion-plus payday, Musk would have to guide the company to a $650 billion valuation by 2028. In the meantime, heâ€™ll earn options for another 1.7 million shares at every $50 billion milestone in between, as long as Tesla hits increasingly demanding operational metrics along the way.Does Elon Musk need a $50 billion incentive to guide Tesla well? For John Engle, president of the investment firm Almington Capital, the answer is simple: no. Itâ€™s â€ścertainly hard to find any justificationâ€ť for rewards of that magnitude, Engle says, emphasizing the fact that â€śthere's no precedent for the kind of payout Musk has been handed by his board.â€ťEngle says that you need to put things in context â€śto understand just how obscene Musk's pay package is.â€ť To do this, Engle recounts the compensation agreement for arguably the greatest CEO of all time: Steve Jobs. â€śWhen [Steve Jobs] came back to Apple (AAPL) in 1997, the company had just posted a $1 billion annual loss. By the time he left in 2011, Apple's annual profit was close to $26 billion. Jobs was compensated in stock, receiving 5.5 million shares over the course of his tenure, worth about $2 billion when he stepped down,â€ť Engle says.Whatâ€™s even more mind-boggling than Elon Muskâ€™s ability to earn 25 times what Jobs walked away with is the fact that Musk could do it without even turning Tesla profitable. Remember, the metrics the billionaireâ€™s company needs to hit in order for Musk to max out his pay package have absolutely nothing to do with real, honest-to-God profits. Thatâ€™s unfortunate for shareholders, since stock prices, over the long-run, tend to follow real profits. That said, not everyone agrees profitability needs to be at the forefront of payment plans like this. â€śTesla isn't a traditional company,â€ť says Hatem Dhiab, a managing partner at Gerber Kawasaki Wealth and Investment Management. It has â€śoutsize goals and aspirations and its comp structure is reflective of this.â€ťHe adds, â€śAll of these incentives are in line with what shareholders would want the company to accomplish for it to constitute a great investment.â€ť And while itâ€™s true that a $50 billion-plus payday for Musk would require an 11-fold increase in the companyâ€™s valuation over 10 years, the fact of the matter is that Musk didnâ€™t need a $50 billion incentive to want to make this happen. In fact, the Silicon Valley icon already owns about 20% of Teslaâ€™s outstanding stock today â€“ heâ€™s already incredibly motivated to drive share prices as high as he possibly can. Heâ€™s got $20 billion riding on it. â€śIf Tesla and SpaceX go bankrupt, so will I,â€ť Musk tweeted recently. â€śAs it should be.â€ť The reason behind the plan: Musk is an all-or-nothing risk taker. And Mars is on the mind.Elon Muskâ€™s net worth is $32.2 billion at last check, making him the 23rd richest person in the world. But for the man whose exploits have been compared to that of a real-life Tony Stark, that sort of wealth might not be enough. Famous for unyielding, far-reaching ambitions with global implications for the future of humanity, Musk has helped change how the world uses money (PayPal (PYPL), championed sustainable, efficient transportation (Tesla, Hyperloop), worked toward making life multiplanetary (SpaceX), lobbied for prophylactic measures to ensure a benevolent artificial intelligence (OpenAI), and started a company that aims to merge machines with humans via a brain implant (Neuralink). These projects cost a lot of money, and the efforts to diversify the human species into space and across multiple planets is of particular importance to the entrepreneur. â€śI want to die on Mars, just not on impact,â€ť Musk has stated previously.The problem with achieving that goal is that itâ€™s expensive, and itâ€™s quite difficult to monetize in the early innings. Having foreseen this problem, the iconic billionaire has spoken openly about becoming independently wealthy enough through his other projects to self-finance the initial phases of colonizing Mars. Though this motivation isnâ€™t often mentioned by the press, it seems to be the primary justification for Musk to seek such an unusually gracious pay package. Species-level goals aside, however, the potential to earn $55 billion â€“ even if Musk lines the pockets of shareholders in the process â€“ is hard to justify from a corporate governance perspective. Not when Musk is already more than sufficiently motivated to see Tesla succeed for years to come.