For the benefit of the OP who hasn't said if he's ever been to the DR, it's important to make a distinction between valuing family and so-called "family-values."
I would say family would be first on a short list of things of importance to Dominicans. That means relatives, including extended ones are your top concern. So things like helping them out, letting them stay with you, feeding them are important.
Family values, to me, imply things like the importance a family places on passing down it's beliefs to the next generation. It comes in the form of the lessons we teach our kids. Not limited to religious teachings, but that of course is included. All families do this in different degrees, but my opinion is that Dominicans don't particularly focus on overt teaching of values, generally. (And yes, I understand generalizations exclude many that may.)
So I wouldn't include "family values" in terms of passing down what each family values high on that list. Not sure if that makes sense. Maybe an example is out of wedlock births. Because family is important, out of wedlock births, even to very young teens, are embraced once they arrive, and loved and cared for to the best of family's ability. "We don't have children before marriage", is not widely taught, which is a common value one would expect from a country claiming 90% Catholics.
Actually, FAMILY, FAMILY, and FAMILY would be my top 3 picks, it's that important.
Cabanas exist to protect the family, the wife and her children so they don't have to see what the husband does. He gets his needs met, while they continue to be provided for. Many men who cheat are very protective of their family and provide for them and will defend them. So I don't see Cabanas at odds with respecting the sanctity of the family unit. Again, it's not within our definiton of family values that men visit Cabanas, but their visits actual consider the family.
May be a matter of semantics, but this is for a project, and I think a whole paper could be written about family values vs. valuing the family.
Sorry that's BS, I'm pretty sure that there are as much or more women who cheat on their husbands as vice versa. The Dominican woman is far from being an angel and a victim. The thing is that the cabanas are quite often a lot nicer than their own homes and they like to knock boots in style.