You forgot to account for domain knowledge. You can be better than me at python, but I know my area and customers. When I'm given a half complete spec I can make good choices for the most part and get done without getting clarification. I can guess what version 2.0 will need well enough that most of the time those features will drop in quickly while major refactoring is required to get them into the better programmers 2.0.

Of course there are tradeoffs. A programmer who is much better than me has advantages in quality (assuming you are much better, in my biased opinion I'm great)