I agree that a plurality of those traits are commonly found, I've always wondered about causality and importance. Not disagreeing, genuinely curious about your opinion.
Edit: clarity and expansion
As does (starting tomorrow) the new leader of the free world.
Sidebar: I do find myself biased in judging someones merit as a leader based off of my opinion of their goals. Someone can certainly be a very good leader and lead towards something very bad.
I'm not a fan of Trump's, but it takes an exotic form of humility to sell gaudy things, have an off-the-wall hairstyle, and be a WWE performer. He's so over the top that there has to be a level of ironic self-awareness in there somewhere.
Even though the majority voted against him, Trump did get a lot of votes, and he did draw people to his rallies. But that kind of support for a politician is more like celebrity fandom than wanting to follow a good leader. Much like the Kardashian family, Trump became famous for being famous. He's always been good at getting into the public spotlight. He's never had a reputation for brilliant business leadership.
Of course, he may well turn out to be a great leader. A lot of the same basic acting skills required to be a celebrity are helpful in leadership. And after all, other entertainers have turned out to be great leaders. It's just too soon to tell.
I thought the majority DGAF, and those that did were - as always - within a handful of percent of 50-50?
Perhaps another way to look at it would be how cult leaders get people locked into their way of thinking. It makes them very effective but by my definition it doesn't make them 'good leaders'.
One of the VP's at NetApp used to say "When your actions improve everyone's experience at the company it is leadership, when your actions improve your own experience at the company its politics."