Okay, let me rephrase this: where I have most seen virginity prized is in the girl/woman of a m/f relationship. Often, this is in the context of religion, and yes, the women in that religion often internalize this particular bit of misogyny and pass it along to their daughters. I have actually seen it outside of the confines of the religion, though. It's an insidious trope that shows up where you least expect it.