Fuck that, I do not concede the point. At least, I don't concede that humans are /more/ selfish than we are compassionate. Our emotional wiring evolved for hundred-human tribes that required a lot more empathy and cooperation than competition.
You don't have to go so far as to disincentivize greed. Greed is socially useful in small doses. Adam Smith wasn't a total idiot. Just stop letting the people who shape society make it so only the greedheads survive.
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"Everybody wants to build and nobody wants to do maintenance."
--Kurt Vonnegut