It would be lovely if some of the folks downvoting this could explain precisely why it is that I should accept my FAANG salary as "enough" while tech billionaires apparently shouldn't, rather than just trying to make this post disappear. It's a perfectly reasonable question -- the ownership class has never considered (and will never consider) any amount of money to be "enough," so why on earth should any of the rest of us?
It is not a reasonable question. Employee wages and founder equity are not comparable things.
What if Bezos said "y'know what, I'd good with AMZN at $10MM market cap, I'm all set"? There'd be no jobs at Amazon. And no one to complain about the jobs at Amazon.
I would venture to guess that none of your Axis of Excess is particularly motivated by money. They do what they do because they enjoy the game. The game of global corporate titan. Money is an abstract metric that lets them keep playing.