Earlier quoted context omitted.
He commands his rates because he is a household name. [..] You, however, are an iPhone app developer. App purchasers have never heard of you. They will not turn out in droves to buy an app just because you worked on it. I think his conclusion is wrong but the analogy is good. It's unnecessary to be literal with the term "household." Most of the world's top scientists, lawyers, and bankers aren't household names, yet…
Interesting comparison you made too. Because for me, I respect Carmack a hell of a lot more than Mike Lee. And I suspect he's a much better programmer as well. And human being.
(Especially since he wrote a few others about saving endangered species and homeless people.)