"In addition, if atheism is a fact, there is no reason to blame atheists who become criminals and who decide to look after number by taking advantage of others in order to get the most out of life for themselves, now. What have aatheists got to lose by being immoral?"

Well, at least you didn't make the common and stupid statement, "Atheists can't be moral." It depends on what one means by 'blame'. With no god there is no 'goodness' in the universe. That doesn't mean we can't individually and collectively define what we will consider acceptable behavior. We can make very rules that promote some agenda that we agree to or we can make rules orthogonal to any agenda, i.e. stupid rules.