that is a tautology and isnt accpetable by scientific standards. any anomaly will undue your theory.
what about true altruism were reciprocation is not possible and one risks or gives his life? evolution only happens at one level, the species not the individual. you cant say, which will be your answer by the way "he is making sure his species survives, greater chance of species survival" this is tautological agian and adds no new information. everything makes perfect darwinian sense, it the same as saying why is the universe so fine tuned? becuse if it wasnt we would be here to talk about it.