we don't have enough high-status men to enforce sensible standards on it

I dunno if "enforcement" is the most compassionate approach. Personally, the most effective way I've found to counter negative attitudes towards women is to have positive social and romantic interactions with them... applying self-control can prevent me from expressing my resentment, but it doesn't seem to fix the resentment itself. Maybe we could have compassion for sexually inexperienced guys (being a male virgin can really suck, although I suspect men contribute to this fact more than women do) and try to help them overcome their problem (e.g. this has been really useful for me).