I got maybe eight or ten endings but most of them were the variaton of the few basic endings. Some of them were kinda happy, like when you escape together with the girl.
Lolita aspect of the game didn't seem out of place, not more so than other questions that Blade Runner raises in general. I think people living in that whole dystopian garbage world would have bigger problems to worry about than whether their relationship with underage girl was morally correct or not, especially considering that he actually fell in love with her.