One could argue that we've decoupled ourselves from natural selection in significant ways by moving toward more egalitarian societies where huge numbers of peop

One could argue that we've decoupled ourselves from natural selection in significant ways by moving toward more egalitarian societies where huge numbers of people who would've been shut out in our more brutal past aren't shut out any longer. Non-humans don't have anything comparable in terms of scale. Alternatively, it could be viewed as more of a reshuffling, where selection will still take place in the long run but with very different pressures. The way I see it, none of us asked to be born, so if we really are trying to be 'fair', everyone should be granted a base level of material support regardless of their ability to contribute. I also think all of us would be much better off we collectively valued happiness more than material wealth. There is definitely a place for incentives, but when those come with the baggage of class warfare, past a certain point they become more destructive than constructive on aggregate.