I believe that he's harping on CEOs of ride-hailing companies, because they're the obvious example that everyone is familiar with. His overall statement, as I read it, is closer to:

>humans in general with unchecked power can become dictatorial maniacs.

And, I think that's the salient point. Others have hit on it, but if a society is too Capitalistic or too Socialistic, the power-hungry people (who always have and, presumably, always will exist) will take advantage of the imbalance, and the people (general population) will suffer as a result. On a large scale, it shouldn't matter how evil/greedy any CEO or politician is, because their power should be limited. The problem, of course, is finding the right balance.