rigourous education excercise in acadamia. Loads of high school teachers have Phd's just by attending classes. No dissertation, no original research, a joke.
Great leaders are thought of as such only after they've demonstrably pointed their constituents in the right direction. After all, when the lemming hordes jump off the cliff and into the sea, does it matter who the head lemming was, or even that there was a head lemming at all?