by "respectable", you mean of course, any other fictional fantasy women in scantily clad outfit.
shaak ti? the one from phantom menace? and here i thought phantom menace and "respectable" do not belong in the same sentence.
since you're making a wild generalization about those who like these statues, let me make one about you as well:
1. you hate sexy women
2. you're gay(and there's nothing wrong with it)
artists from the renaissance to the present love sexy women. they love to draw them, to sculpt them, to write vivid descriptions about them, to imagine and dream about them. there's nothing wrong for artists to create dream women, just as there's nothing wrong for non-artist to enjoy, appreciate, and own such creations. man is man. owning this statue is no worse than having a nude painting hanging on your wall, or a playboy subsription, or browsing for porn, or oogling your cute classmate and co-worker. man is man. perversion has nothing to do with it.
the only stigma you'll get for having the sexy statues above is that you love sexy women; which is already a much better stigma than what you'll get by having any dc/marvel female statue around - you love sexy women too, but she must have cartoonish face, exaggerated body proportion, and wear colorful silly disco era spandex, a.k.a. you have a silly notion about women.
i'm happily married to a woman(neither deformed nor imaginary), been together for almost 10 years. and i do enjoy looking at victoria secrects models, i enjoy seeing nicole kidman naked on films, i enjoy watching porn, i enjoy sexy statues. what does that say?