Except it's not. That wealth isn't cash in some bank account, in most cases it's a stock in companies these people built from scratch - Bezos made Amazon, Gates Microsoft, Buffet Berkshire Hathaway and so on
The wealth of super rich is allocated in places that produce goods and services
Funny thing is that capitalism accidentaly solves global warming same way as it created it - turns out renewables are cheaper than fossil fuel, and the greed machine ensures the transition to more cost efficient energy sources
Maybe I'm one of them?