I think the situation is similar to 1984. In the book, the leadership was just as brainwashed as the lower class. They too loved Big Brother despite knowing his nature (got to love the doublethink)
After reading Crisis of Conscience, I kind of got the impression that the Governing Body really believes in what they are doing for the most part. They are already pretty much at the limits of what power, influence, and money a person can get. The money grubbing is not out of some conscious master plan to gain even more wealth, but instead due to the inertia of the group thinking of the Watchtower corporation. No one really stops and thinks about whats going on. The corporation and organization goes on almost of their own accord.
Anyway, just a thought...