Comment by asdff

I think its more accurate to say where you find consensus in morality, e.g. murder is wrong outside authorized violence (e.g. war or policing), you also find extensive selective pressure behind this behavior. It makes sense that all collective society cultures would outlaw murder; such a behavior is incompatible with collective living behavior whether you are in a cave or a modern skyscraper. Early societies have always been rejecting those alleles from their gene pool.

When you find shades of grey and great spectrum of opinions across time or space, its more that there isn't a strong selective pressure either way. How people are expected to dress is a good example of this. This has no real affect on society behavior or fecundity, so you see a spectrum of opinions that explain the differences between what you see in the middle east and a beach in brazil.