Here's an excerpt that you may find interesting:
A biological predisposition? That could make for an interesting investigation. (Also, I think that empathy is more beautiful if there isn't some sort of divine incentive, so I agree with you on that one.)"But my dangerous idea, I fear, is that no matter how far our thoughts vault into the eternal sky of scientific progress, no matter how dazzling the effects of this progress, God will always bite through his muzzle and banish us from the starry night of humanistic ideals.
Science is an endless series of binding and rebinding his breath. There will never be a day when God does not speak for the majority. There will never even be a day when he does not whisper into the ears of the most godless of scientists. This is not because God is not an idea, nor a cultural invention, nor an 'opiate of the masses,' nor any such thing. God is a way of thinking that has been rendered permanently by natural selection..."