The family study of the moment is by sociologists Brad Wilcox and Steven Nock. In “What's Love Got to do With It? Equality, Equity, Commitment and Women’s Marital Quality,” in the current Social Forces, they found that most married women are happiest when their husbands are emotionally engaged in the marriage. This was true regardless of whether the division of labor at home or in income was equal or not. This finding also held whether the wives described themselves as traditional or progressive.
A secondary finding was that self-described progressive wives are less happy than traditional wives, no matter what the arrangement of work and household chores. The Slate article commenting on this study, by Meghan O'Rourke, is entitled "Desperate Feminist Wives: Why wanting equality makes women unhappy." In the discussion of this article at the Family Scholars Blog, on the other hand, one respondent argued that "conservatives are happier because their circle of concern extends no farther than themselves."
A good marriage makes most people happy. If you enjoy a happy marriage, this does not mean that you are selfish. Happy marriages enable all kinds of people, left, right and center, to do good things in the world. I think "progressives" are less likely to feel happy even in a good marriage because they think they ought to feel outraged.
But the pleasure of righteous indignation comes at a cost: rage makes you unhappy.