The thing is, it doesn't matter how smart/dumb a person is when they are involved in a cult, and under mind control. We all know "smart and intelligent" people who will go to the grave believing in the WTS.
So we ask, why?
Because intelligence doesn't matter when you are under mind control. Like Magnum's friends, who may know something isn't quite right, but they can't quite get out, because they don't want to lose their position, or their family, or friends, or simply are just comfortable giving up a portion of their lives because they 'feel important' because they give talks out every month and ten people come up to them afterwards and thank them for giving the talk.
That is why all of this talk about the cult crumbling into oblivion is just plain bull. It won't go away because of simply human nature. People want to feel important as one of their primal needs, and the WTS fulfills that need. Being a soldier of Jah is very high on the list of being an important person, no matter how much you fail in every other aspect of life...