Many Alpha Heroes have that one villain. Not the common Polar-Opposite Arch-Enemy, but the rarer Remote Evil Overlord.
Luke Skywalker has the Emperor.
Wonder Woman has Ares.
Superman has Darkseid (or, perhaps more accurately, Mongul).
And since 1971, Batman has had Ra's al Ghul.
Any other fans of The Demon's Head?
Which version is your favorite?
Mine is probably the B:TAS version.