Female superheroes and supervillains are really fucking boring and have only stuck around all these years due to their sex appeal.

There's a reason why people enter full outrage mode when they decide to cover them up, reduce their breast size or whatever, or why anyone even the most hardcore comic book fans will have a hard time recommending a genuinely good Wondy or Babs story while having hundreds of their pics saved in their hard drives.
Being sexy is their entire character.