In general, it is genetically beneficial not to hurt others. After all, you share at least 99% of your genes with other humans. Sure, there might be scenarios where a man's best option for promoting his genes would be to rape a woman, but genes don't deal with "scenarios", only what works in general.
Genes don't decide anything about promoting themselves. The ones that stick around are just the ones that make an organism best adapted to survive in an environment.
But like I mentioned, genes provide only basic moral instincts. The specifics are cultural.
I disagree that In general, it is genetically beneficial not to hurt others.
Sometimes it is, sometimes it isn't. Look at the animal kingdom. Lions dogs cats birds. sometimes they will cooperate with other members of their species, sometimes they fight.
The same is true with humans. Sometimes it makes sense to cooperate with other humans, other times it makes sense to take your Spear and try to drive away the Rival Hunting Party.
from an evolutionary Viewpoint, every human behavior is the result of evolutionary processes. Does rape occur? It is the result of evolution.
I understand the genes don't actually decide anything. I was simply personifying them to make it easier, more everyday life, to talk about.
culture is simply a term we use to describe the behaviors of large groups of humans. but these behaviors are all products of evolution, genes.