Heard it said that some of those Oil tycoons in Saudi Arabia are above him. Their ruling/royal family is worth over a trillion.
The fact that so many of the billionaires still want more, and more, and more is what gets me.
They'll never get anywhere close to spending what they're worth.
Not sure my conscience would allow me to hoard that much money.
Then again, I suppose people with a conscience typically aren't mean/awful enough to do the terrible things needed to generally reach that level of wealth.