To me honor/conscience is an evolutionary adaptation to cooperate in iterated prisoner’s dilemmas, plus whatever side effects/lost purposes that ended up piling up on top of that. Just like love is an outgrowth of evolutionary adaptation that improved the odds of genetic material propagation through strategies like (serial) monogamy. Of course, we wax poetic about both, forgetting that they are but a fluke of evolution.
We wax poetic about both because we like doing it. I don’t think that is affected by whether it’s a fluke of evolution