You are really are slow to grasp the realities of life.
Christians like you do things for others for very selfish reasons which you covered in your post. Avoiding hell seems to be a preoccupation with you and that which drives you to do things for others.
You claim that atheists don't have such drivers and I, therefore, claim that they do good for others because they love their neighbours and not for rewards - a fact that you are demonstrating that you are incapable of comprehending.
