The men were all scumbags, but the whole point of the film is to show the development of that. Each guy is going in there to have a good time. By and large, these men are career men, family men, and you just see the deterioration of them.
The fact that a person loves one particular person is what is important; the life lesson, whether you are homosexual or heterosexual, is that you not be promiscuous, and true to one person.