LeavingWT I think some people find cults an ideal place to operate. They can find status and control others, by a position they attain in the cult, that they probably would find elsewhere. Do these people want to be free?
I read "Escape from Freedom" by Erich Fromm (http://www.amazon.com/Escape-Freedom-Erich-Fromm/dp/0805031499/ref=sr_1_1?ie=UTF8&qid=1309480610&sr=8-1) a long time ago. I think I remember that Fromm describes how sadistic people (in the sense psychologists give to the term) actually fit very well in rigid hierarchies. They want to inflict pain on others, but they also want to be subservient to something "higher" than themselves. Being a masochist is the other side of the coin of being a sadist. If I'm not mistaken, Fromm says Hitler was one of such men. He wanted to be above everyone else, but only so he would be closer to "the ideal". He'd be, say, the first among all the servants. Perhaps this applies here?
I don't remember exactly where I read the comment about the choice of occupation a certain woman made. I think it was a book by Fromm as well. The thing is, this sweet woman became a prison guard and people wondered how she could fit there. Fromm (or whoever wrote that book) pointed out that she had the right personality for the job, or else she wouldn't have chosen it.
Someone else pointed out that Joseph Goebbels eventually chose the Nazi Party but had trouble making his mind up as to whether he should join the Socialist party instead. There was more than one similarity between the two parties, but Goebbels chose the one that fit his own personality best. He was, of course, a very smart man.
I know of someone who joined the witnesses after having been in the Army. At that time, I didn't know what being a witness entailed, and so I thought nothing about it. Now I think that he had some need of a hierarchy, and he found it elsewhere. He could but recognize his past brutalities, and perhaps this organization gave him a sense of order and a sense of righteousness.
My speculation.