Of course he can; Elon Musk isn't simply a regular guy who became rich. He's a genius, and he's used his knowledge to rise to the top of the financial ladder. With the current state of finance, he has invested in crypto, which has yielded significant earnings. Tesla, his company, made a large profit in Bitcoin, which they invested heavily in the second quarter of 2021. So obviously, he can sustain himself from being at the top of the leaderboards.