Altruism is a guilty pleasure. One I indulge while knowing I shouldn't. It's awful economically.

Obviously, the society that lives on altruism alone must die of starvation and exposure, as there were no net gains as in mutual exchanges where both parties profit (not only the seller). Not only the one accepting money profits from a purchase. We can say for sure the one paying money (the voluntary 'buyer') also expects to profit in his own estimation, else he would not have bought.

Then again, I'm talking to people who talk like a fixed-pie gambling pool can lift all boats, somehow.