What's compelled you to look him up? Academic or personal interest or?
I got a grab bag of random knowledge in my BLS in English, especially since most of the RPG players at the college were in Philosophy.

Nietzche really maps better than any other Philosophy I know to the actions of Ogres as portrayed in the lore, assuming one doesn't just view them as Stupid Evil.

So I retro-applied what I knew when fleshing out Mor'Lag. The SWEU Sith were also an ingredient. But the single biggest factor was the Nietzchean civilization from Andromeda, which was based notes from Gene Roddenberry from when he considered making a Space Opera, but before he decided on making a new Trek series