All of the 10 richest people in the US, with the exception of Warren Buffett (and even that I wouldn't really call an exception, more on that below), built real

All of the 10 richest people in the US, with the exception of Warren Buffett (and even that I wouldn't really call an exception, more on that below), built real businesses with real products that are used by millions of people and companies. I think wealth inequality is a major problem of our time but I despise this painting everything with a (factually incorrect) bad brush. Re: Buffett is the only "pure investor" in the top 10, but even then Berkshire Hathaway is pretty famous for having a portfolio of some of the best managed companies in the business. It's not like Buffet is a day trader.