I think that the bottom line is, that no matter how smart or thought out a boy or girl is. And how shallow or un-shallow each spouse is, they must have someone guiding them. The world is such a sick and twisted place, and sometimes even sincere and good people with the right intentions can get confused an off course. So all in all, Daas Torah and a personal Kesher with a Rebbe is essential to thrive and fulfill our Tafkid in this world.
Agree???