I totally get the Modest Girl idea once you have dated some of the popularity seeking personalities. I am not so sure about Modest Church Girls - they are a little out there with a different agenda and man they are uptight and their judgements or everyone and everything is not healthy.
Discussion
Don't get me wrong, even within the church, there exists a small percentage of quality wife material. It's just significantly more likely that you will find them in church as opposed to a college campus or bar. My opinion also assumes a Christian worldview. I can't fathom having much hope in the realm of morality from worldviews that don't believe in an objective moral standard.