It raises a more general problem with capitalism, or maybe with "late-stage capitalism". Even setting aside Bezos, what happens when wealth gets concentrated into the hands of a few and wealth disparities grow, as we see in America today? It seems easy for the wealthy few to essentially rule in a kind of oligopoly at the expense of the masses.
I read an article yesterday about the wealthiest zip codes in the United States, and the top 50 or 100 I think were exclusively in two states: New York and California. If you've ever wondered how liberals have such great influence over American politics, just follow the money.