Let me break this down in the simplest terms possible: Mr. Wolf was intentionally made to be "thirst" inducing because he's the main character, and the same is true for Diane Foxington because she's the love interest. It's movie making 101, if you want the audience to be invested in the love interest of the film, you pick a leading male and female who look like they belong together. As the storyteller it's your job to manipulate the audience's feelings without making them aware of it, and one of the most reliable ways to do that is to make your male and female lead be the most idealized looking characters in the movie and then fill the supporting cast with goofballs.

Even normies were all over the Diane Foxington and Mr. Wolf romantic overtones in the first Bad Guys movie, and that speaks to the fact that it was successful in what it was going for.