Bad Guys and Gals Can't Just Be Bad

Of course I'm evil!
I'm sexy and wearing black, aren't I?The trouble with a lot of villains isn’t just that they’re evil, but that they’re only evil.  Think Sauron or Emperor Palpatine or the White Witch or Voldemort.  What they’re generally after is power over the masses to . . . rule, I guess?  It’s never exactly clear what they intend to do once the good guys are all defeated, and the rest of Middle Earth is safely under the oppressive heel of their fashionable, black leather...