Storytelling has provided 1000 examples of redemption for every tale of its opposite. And, at least to me, I have a much easier time believing tales of redemption than the examples of falling from grace we've listed here. I guess that shows how storytelling has its roots in morality tales and how optimistic we as a people remain.
What historical figures would you most compare the Original Trilogy Darth Vader to? Genghis Kahn, Alexander the Great, Hitler, Lenin, Enver Hoxha (C3PX will know who that is
)?