Far be it from me to second guess our church leaders, but there's one reason I see (among the many, many reasons) for my wife's decision I wasn't worth anything except as a source of funds.
Our Mother's Day at church was filled with many talks praising women. Phrases I heard more than once (from both men and women - in sacrament meeting, Sunday school, and priesthood):
1. "Women have a special spiritual sensitivity that men lack"
2. "Women are inherently more righteous than men are"
3. "Women are more important than men in the eternal scheme of things"
4. "Men need to follow their wives more and listen to them and do what they say."
5. "Really, when it comes down to it, women are necessary in every aspect of life."
Isolated, none of these is terrible (though the first three smack of pandering), but all together - is it any wonder some women decide they don't need their husbands, and it's okay to just walk away? Coupled with a broken family law system that favors the female and turns the father into either an absentee money man (after all, fathers are supposed to provide for their families) or a deadbeat dad (due to, as my lawyer said, "the state doesn't care if you go bankrupt or starve to death, as long as you pay the child support and alimony"), we do not have a culture that encourages families to tough it out during tough times.
As I said in previous posts, it actually makes sense for my wife to walk away. The state ensures she has income for life, regardless of what I say or do or make, she no longer has to work on maintaining a relationship with me (maintaining relationships are hard work), and the church leaders and culture tells her that no matter what, she's inherently more righteous than her loser male of a husband.