It may be tempting to say "they must know something others don't" or "there's something unique about them." But that's exactly the kind of thinking GP is pushing back against. Whether or not you say "genius" or not is semantics. But it's true that in some cultures, being rich is seen as a sign of wisdom or superiority. I see it sometimes on HN and I've definitely seen in public discourse. But I can't relate very much to it.
This may be a cultural gap but where I come from, wealth doesn't carry that kind of moral weight. It's like, sure Alex might be super rich. But are they honest, humble, and kind? Those qualities matter far more than how much money and assets they have.
Yes, there are billionaires where I'm from too, but no one treats them as inherently special. What people truly admire are virtues like groundedness and community service. When someone uses their skills with sincerity and a spirit of giving, that's when people say, "there's something unique about them." And this is going to be true as much for a rich bloke as it'd be for a poor bloke. Wealth has nothing to do with it.