Unfortunately that is true. But monastics can have an effect on the world as well through their prayers. I pray she undertakes her calling with faith and sincerity, and prays for the other worldly young women out there who desperately need help. Sometimes a little push is all they need to change and embrace tradition, possibly making good future wives.I have to say it because I'm sure others are thinking it - good woman also not available as a wife.
It is said when the monasteries are full, the jails are empty, the hospitals are empty, the casinos are empty... When the monasteries are empty, moral corruption pervades everywhere in society. As we saw in Russia 30 years ago. So in the grand scheme of things, more monastics can also bring more women to the Church.