Jeff Bezos' networth is 190 billion. Satoshi Nakamoto could be owning around 1 million Bitcoins. If 1 Bitcoin would cost more than $190,000 than his networth would be more than that of Jeff Bezos', assuming it won't change, for the sake of argument. There are other individuals who hold a lot of coins, but still much less than a million coins, so Bitcoin would need to cost millions of dolllars for them to become the richest person in the world.