I've known a few of these guys (usually guys, but not always), and I agree they are a very generic type. I also think they can be tremendously beneficial to society as well, even if they aren't to the individuals in their lives. (Steve-Jobs-types, etc.)
I still find them fascinating, because they tend to exist in interesting environments. It's like going to Africa, but not wanting to see any lions.
I think that most of our 'great leaders' (good one's) that we look up to, flirt with this mindset for periods of time in their lives.
Not all cult leaders maintain their disposition after being arrested.
The author was fairly concise actually in identifying core attributes, and especially with the meta cognition bit.