The massive wealth of the billionaire class and their multinational interests is a juggernaut out of control. Of course they don't control anything besides meetings with other billionaire's. They don't even buy their own private jets. But that money just keeps making more money and sucking the life out of the real world economy.
They have the power to take control. But as you can see from the Shultz fiasco, none of them really has clue how the real world works anymore.
I think market world controls a great deal now as state power and public spaces have been outsourced or sold off. Faster under Republican control, slow walked under democratic control. I agree that it does suck the life out of the economy and cause impoverishment for many.