They pretty much believe what they teach others. You'd have to, wouldn't you? The best liars are those who believe their own lies.
It's the blind leading the blind...Jesus gave the best description of it, I can't do better.
I think a few of them are douche bags using the others, but you're going to find that in any group of any size, the sociopathic users who've found a good place to hang out, lots of fresh meat. Rutherford was a calculating SOB, or so it seems to me. Just my little old opinion there.