Mankind wants to believe in miracles and magic. If there were truly a god and it worked its magic through science then men would have a hope of surpassing him. Without a father role who punishes and rewards justly, religion falls.
I disagree. As a father, I really hope and pray that my children will be better than me in every way. I can't speak for anybody else's God, but the God I believe in would love to see me surpass him on every level of the Tower. Just because I believe this doesn't mean that a God or Father will somehow lose their "father role". IMO, no matter how far we progress, we will never actually be 100% above them for all sorts of reasons, but to think that a father or God wouldn't want his children to become better than him is silly.