The Deep State is the tool which the real elites use to control the US, against the will of the voting majority.
If a bureaucrat of the Deep State is a good servant, then the reward will be a cushy high-paying job at a defense contractor (if DoD) or a pharma company (if FDA), etc.
The ultra-wealthy depend on the Deep State to also give them the information they need for their investing. Consider, for a moment, how much even a few hours advance notice of an impending major world event would be to a hedge fund manager controlling $100B worth of investments.