Why wouldn't it be? The set of morals that are (generally) accepted by most societies greatly contributes to the functioning of society and are values that in a broad sense make our lives better and easier to live. Maybe you are confusing atheism with nihilism?
Did you ever stop to think that maybe we created our gods as the arbiters and enforcers of these morals instead of the other way around? Seems like they would be an awfully handy tool for that.
Or maybe we created these Gods as a reflection of who we can become, who we really are without our self hate.
Remember that the reason this deep truth is hidden from you and the world is that it lies on the other side of hell, that you have go go through the Inferno to find it, that you have to know and feel your self hate to truly see you were deeply deceived as to who you are by put downs as a child.
