There is a lot of dumb rich people - like for example: all the idiots that paid to go on that little tin can trip to the bottom of the ocean to look at the shipwreck/graveyard titanic.
For stuff he understands, economics for example, he is very smart.
For stuff he doesn't understand, LLMs for example, he comes off quite gullible--a polite Joe Rogan, if you will.
because being rich isn’t very smart. the things one has to do to become rich compromise one’s integrity to the point where one loses one’s intelligence. vide the finance ‘industry’ for example. or any billionaire.