If religion had a good purpose then man would have created something great. But we're man: we mess up everything. We mess up nature. We mess up God. We take what is given to us and make it into what we think it should be.
In theater or movies you see either 'I'm religious' or 'I'm an atheist.' I've never seen too much discussion of 'I believe there's a higher power but I'm hesitant to reach out to him because I don't know if I'm worthy of his attention.'