Hi Chad,
Great post. It definitely presents  a different view of leadership than I've had before, but I believe you're right. I would submit one more reason people follow someone else.
   "I like how you make me feel", or "I'm better because of our relationship".
Maybe this falls into one of the categories you mentioned, but I didn't come to that conclusion as I read back over it.
Again, I really liked the post. God Bless
Ken Garman