I think that it is largely meaningless to talk about the income of people like Bezos. At least, it is a mistake to identify it with changes to their net worth. By that standard, the great inequality is not between Bezos and the poor, but between Bezos this year and Bezos last year, when he lost billions of dollars!

I can't object much if you do ten year averaging, so this is just quibbling over an order of magnitude.