We are never so poor that we cannot bless another human being, are we? So it is that every evil, whether moral or material, results in good. You'll see.
Kindness comes with no price.
Men in no way approach so nearly to the gods as in doing good to men. [Lat., Homines ad deos nulla re propius accedunt, quam salutem hominibus dando.]
We must strive every day so that this love of living humanity is transformed into actual deeds, into acts that serve as examples, as a moving force.
Who will dare to write a history of human goodness?
Granted, we may try to help our own family members because they share our DNA. Or help someone else in expectation that they will help us later. But when you look at what we admire as the most generous manifestations of altruism, they are not based on kin selection or reciprocity. An extreme example might be Oskar Schindler risking his life to save more than a thousand Jews from the gas chambers. That's the opposite of saving his genes.
As for religious faith, a lack of it shouldn't stop us from doing good deeds for their own sake.
The primal duties shine aloft, like stars; The charities that soothe, and heal, and bless, Are scattered at the feet of Man, like flowers.
At the end of the day, will God be interested primarily in whether I have been kind and helped others, or in whether I was baptized and how?