Think about the options for making illicit money inherent in an organization shrouded in secrecy, black budgets, and the training to be extraordinarily devious and cunning.
I look at a John Brennan and I see a political motivation: working towards a global Communist state. But what if some of these people are using their spy tools to make money. Could they not spy on private corporations to gather top secret market information and engage in insider trading? Could they not invest in companies in foreign countries, then interfere with the governments to make sure those companies were protected?
Why not? Who watches the watchers?