Few of us will deny the second world war was won by the side with the superior morality. The irony here is how we got to have that, after having not been so altruistic hitherto! The linked article endorses this thought as worthy of consideration when we are now so immersed in less than decent behaviour.
I suppose it all stems back to the finite nature of life. We have but a short time to enjoy this Earth so ergo we need, it would appear, to fight and scrap for the "goodies" whilst we can. Yet are these trinkets those which give greater pleasure and joy than living peacefully and less greedily? It seems they are, or are deemed to be, the baubles with which to garner votes and power.