I just thought it would be a nice way to show off the various sprites from the dance/strip/intro scenes zoomed out a little in the different outfits. You could always override specific characters like Batgirl to only use the defaults. You could also add the option for "Private shows" in the lair, where Lex himself gets to see the various girls in various outfits. Really having the slideshow functionality of various girls, in various outfits in various poses is the real ask here.
Maybe a "Private show" option in Lex's room, even if it was completely randomized with the heroes henchwomen and villianesses would be cool (although it would be best if you could slot in the ones you wanted in the outfits you wanted).