A born and bred bigot like Duke isn't a leader. He leads only in his own mind. I believe in the world of professional, licensed psychology that Duke is what is known as a "narcissistic sociopath."
It is pretty easy to see just how so many of these middle aged men today are preening, strutting, swaggering and pretending power they don't really have. They have social media to rely on for their much needed infusions of ultra-egotism.
On the one hand, we may try to ignore men like him. But, the danger of ignoring them is that they simply do not believe there are limits to our patience and intolerance of their insufferable need to "Selfie-ize" the media with daily doses of their hateful,, spiteful, envious little games.