Males want to attract females and get married. They way they can do this is by achieving money/power. If education is profitable and possible, then executing it takes care of itself. If it's not possible, well it was a moot cause anyway unless some outsider will come in and help.
Females are valuable just for their ... personal assets ... so bootstrapping is a little harder because they have intrinsic value they can fall back on (someone is going to get angry at me for saying that, but it's just the way it is). If I can just marry a rich man I might be okay with that, or whoever makes the decisions for me might be okay with that. You have to get someone to come in and force enough of them to feel like they're a failure for not getting an education and then eventually they'll socially reinforce it themselves without further outside influence.
I believe this is why it's much higher yield for the enlightened outsider to come in and declare their moral and intellectual superiority and tell the females they are losers (or less happy, or less independent, whatever the politically correct terminology is used nowadays) for not getting an education, and get (read: bribe) their families to put them into it.
