You have made an interesting point, for arguments sake, consider though, that an atheist can also incorporate moral values into his/her lifestyle.
You see an atheist experiences life without religious concerns and barriers are non- existent as there are no obligations towards a man made God.
Atheists can assemble free thought patterns because there are no screws into place, where as religious people are screwed into place as they feel obliged and can't disappoint there so called moral obligations and can't engage in free thought as their lifestyle is dependant upon good and evil, where as good and evil for an atheist is looking into matter with a clear mind associated with trial and error.
In a real life ( that is life's truths in all absolutes ) a superior entity would welcome an initial person doubting the very personal existence of self in order to achieve a better representation of a higher order.