That’s an extremely naïve view of the world. If Musk could sit the chair, he would. What do you think the accumulation of unhinged amounts of wealth is about but increased power? What do you think those opulent displays of wealth from dictators is about but to flaunt that they have all the wealth and power?
Musk could easily buy himself a governorship or a senatorial position and work up from there. That’s not his goal. He wants to be the next Thomas Edison. He wants to be admired and remembered.
Dictator’s opulent displays of wealth are to stoke their egos. They don’t care about the money they spend because they just took it, they didn’t earn it. They care about how much control they have over the people around them. They don’t care if people like them ,only that they fear them.