From my Facebook inspirations: Aristotle, Newton, Thomas Jefferson, Ramanujan, Ayn Rand, Richard Feynman, Mike Mentzer (yes, I know he hasn't had a deep understanding of Objectivist epistemology, but I really tend to like the concept of a greatly educated bodybuilder; this combination of mind and body clearly does remind me of Radian heroes), Steve Jobs.
All these were innovative geniuses, and---to different extents and in different ways---had an impressive biography and held generally positive premises.