Just found out that Bill Gates' networth,$86B is the market cap of the top 5 cryptocurrency, including Bitcoin and Ethereum, combined!
Money creates money and his money is working for him even when he is sleeping. If you look at the top 10 Dollar Billionaires you would notice
that they trump Bitcoin with their wealth. https://www.forbes.com/billionaires/list/#version:static
You have to remember these guys has been accumulating wealth for most of their lives and Bitcoin has only been around since 2009.
Just WOW! that statistics on the Forbes was just a shocking after seeing it a second time now and that bill gates was the ultimate billionaire, but I think OP thinks their wealth does involve with Cryptocurrencies? I think their wealth does have taken part with Bitcoin, they can surely Buy billions of bitcoin if they can and as much as they want invest with it, but as the statistics was shown this is remarkable and we are seeing people all made a big income by means of their skills, talent, and potential.