As long as they didn't cheat or steal to get there, why does it matter? I'm fairly sure wealthy people don't have tons of cash on hand, most of money is in the companies they built or invested in.

According to this article [0] Jeff Bezos net worth is $188.7 billion. His shares of Amazon represent $172.8 billion. While unlikely, if Amazon stock plummeted he would have "only" $15.9 billion. While still a lot on its own, the vast majority of his money is not even usable (immediately).

[0] https://marketrealist.com/p/how-many-shares-of-amazon-does-j...