Daniel Dennett sympathizes with them:
There are many paths into this predicament, we find, but a common thread runs through most of them: a certain sort of innocence and a powerful desire, not for social prestige or riches, but rather the desire to lead a good life, to help other people as much as possible. The tragic trap is baited with goodness itself.
Here is how it often works: teenagers glowing with enthusiasm decide to devote their lives to a career of helping others and, looking around in their rather sheltered communities, they see no better, purer option than going into the clergy. When they get to seminary they find themselves being taught things that nobody told them in Sunday school. The more they learn of theology and the history of the composition of the Bible, the less believable they find their creed. Eventually they cease to believe altogether. But, alas, they have already made a substantial commitment in social capital – telling their families and communities about their goals – so the pressure is strong to find an accommodation, or at least to imagine that if they hang in there they will find one. Only a lucky few find either the energy or the right moment to break free.
The Dish 