Natural selection presupposes violent competition for resources and reproductive access. But the final outcome of this war of all against all is the development of increasingly complex organisms with increasingly malleable behavior. We humans occupy the current zenith of this still upwardly mobile trend.The moral: intense, cut-throat competition among individuals leads to all the best of what life has to offer.
By analogy, individuals competing against each other in a free market lead to the development and sustenance of a complex economy. Therefore, if we want to keep our complex economy healthy, we should cultivate selfishness and competitiveness in ourselves. Actually caring about anyone who has difficulty competing, for whatever reason, in this view, is horribly misguided.
At the same time, we have to forgo focusing on those who have one or another disadvantage because in attending to them, in trying to help them, we're actually inculcating in them a sense of entitlement. We're spoiling them. It's better for everyone if we agree to act only on our own behalves--as individuals. After all, that's how a complex, functioning economy evolves.
And cultivating selfishness in ourselves shouldn't be too difficult because looking after our own and our close relatives' interests is what made us the most advanced species on the planet. That's the argument anyway.
This brand of social darwinism relies on what's called the Naturalistic Fallacy, the conviction that we ought to behave in a certain way simply because doing so is natural. But, more importantly, it relies on a confusion of the process or mechanism of evolution with its products. It is possible for a species that at least in some circumstances does not behave selfishly or cruelly to emerge even from the most intense competition and natural selection. Selfish genes, in other words, don't always and necessarily mean selfish individuals.
The possibilities for the evolution of cooperation and altruism are only just coming to light, primarily through the work of David Sloan Wilson, Eliot Sober, and Robert Axelrod. "Selfishness beats altruism within groups. Altruistic groups beat selfish groups. Everything else is commentary." This quote from a paper written by D.S. Wilsion in collaboration with E.O. Wilson catches the gist of the new insights, and it is clear how intergroup competition is reflected in human tribalism.
One of the key mechanisms in the evolution of altruism is strong reciprocity, which means that we don't just track our own interactions with specific members of our group but also pay close attention to how those individuals treat other people they have dealings with. Humans get pissed not just when someone cheats them specifically, but when someone cheats anyone.
William Flesch sees in strong reciprocity the key to understanding human interest in fictional narrative. His work was my introduction to the game theory models of cooperation, but the most jaw-dropping evidence I've seen for strong reciprocity is from research with children. Karen Wynn has done studies showing that infants, long before they even learn to talk, show a fondness for stuffed animals who have been made to perform cooperative acts by researchers over those who have been made to act selfishly. Even when the helpful or hindering characters are wooden blocks with simple eyes, kids still prefer the helpers as toys. (Check out this video clip from PBS's show "The Human Spark.")
In a social environment where nearly everyone is born predisposed to favor others who demonstrate altruistic behavior, selfishness becomes nonadaptive. And that, contra the caveman conservatives who tout social darwinism, appears to be the course our evolution took. In consolation to those who trumpet selfishness and competition, this lesson in biology jives much better with Christianity, at least the part of it inspired by the actual teachings of Jesus, who was, after all, a long-haired liberal.



