Btw, it doesn't matter what anybody thinks of a married person. You simply just don't rate them because they're unavailable anyways. You can think they're unattractive but the fact that they got somebody makes your opinion moot.
However, for us old, married, folks, there is a completely different rating system. There is such a thing as a high-valued husband/wife. The criteria typically includes job stability, how they interact with elders, community involvement, homeownership, parenting skills, and the satisfaction of their spouse, just to name a few. And of course, physical looks is also a part of it.