Not only that. According some scholars, without believing in fiction Homo Sapiens could not have become rulers of the Earth. The ability to believe in fictitious stories helped Homo Sapiens to gather in large numbers(over 200 individuals), and to defeat the Neanderthals, who were much stronger physically.

And I absolutely agree with you regarding morality. We would still be savages if there were no religion. For thousands of years various religions were helping people to be more moral and ethical, but in the recent times it looks like they are working in the opposite direction. I think that is so because the moral principles of people in general, regardless of their beliefs, have been advanced to such a level that no religion can keep up. And yet we must always remember that religion was the root cause of this transformation.