The Peter Principle is a famous idea that, simply, people get promoted until they're in a position they're simply not good at. Too many people are promoted to their level of incompetence.
This is often used in many jokes, but it's actually something I take seriously. I take it seriously as I've seen it in action.
I also take it seriously because it scares me, as it is even more important to career geeks and profans like us. We, yes we, the cool and creative and hip and obsessive people are in even MORE danger of the Peter Principle affecting us. We are, in short, in more danger of being promoted far beyond our level of competence.
The danger is that we often like what we do and can miss when we're bad at it.