I had a long talk with my Elder Bro in law shortly after I had left, and his attitude came down to what was basically a " Pascals Wager" idea, he felt that even if they were wrong, he had hedged his bets, and lost nothing.
I tried to reason that it was therefore a wasted life he was living, but that didn't get any reaction. Another Elder told me much the same, that he was quite prepared to find out that it was all wrong, and that this is in fact the only life we get.
Over a decade later, they are both still in. I think with both of them, both well known in the wider JW community, all their kids and grand kids in, and both well known in the local "worldly" community, that Pride comes in to it, they will not admit they are wrong, and that they have wasted over 7 decades of life. Sad really.