Bill Gates who has more or less devoted his life to saving as many lives as possible.

…

Buffett who last I heard had donated some 50 or 60 billion to different foundations.

…

Even Musk, for all his recent evil got rich trying to reduce our dependence on gas cars

Maybe they are happier than OP suspects - I’m not them so I can’t really comment on that. As far as your framing of their motives and achievements though… Hard disagree, especially Musk and Gates. All three fucked over tons of people to get their obscene wealth.

I’d go into great depth as to why, but it usually ends in nothing being learned and a lot of my time wasted so I’ll just hard disagree and bow out.