If someone builds a company and becomes crazy rich - is that a good thing or a bad thing for society? One interesting paradox I always think about when it come

If someone builds a company and becomes crazy rich - is that a good thing or a bad thing for society? One interesting paradox I always think about when it comes to this debate is that every dollar owned by a rich person is worth nothing to them until they give it to another person. You can't eat money. So one man's wealth is another man's income. A problem only arises when the rich person spends that money on luxury. Like when he builds and maintains a huge house for himself. With lots of butlers and gardeners etc. All that work could have been spent on building a factory, a park or a museum for everybody instead. But if the rich person uses their money to hire people and build another company - that is a good thing. Even if they become twice as rich in the process. So the problem is not how rich some people are. But how much energy society spends on luxury.