The creation of a superclass of people so wealthy they can do whatever they want with no threat of destruction by market forces is an inherent problem for capitalism.
We don't know yet how he made his money or who he is in debt to, but we've seen enough to know he's lost more money than entire governments, and it hasn't affected his power or status at all.
Trump isn't that. And it's increasingly obvious, capitalism isn't that either. At least not as it's practiced in the United States.
The question is, will Trump be the wake-up call we need for a second round of reforms?