[achenet]

I don't recall the exact quotation nor the source, so there may some factual inaccuracies in what I'm about to write, but I think I read somewhere that under bushido (the samurai code), no distinction was made between someone returning a wallet because it was the 'right thing to do' and someone returning a wallet for less altruistic reasons (fear of being seen as a thief by others, etc).

This would seem to support the hypothesis that not all cultures value intent as much.