Well, I was just trying to point out that median is a silly measure, but now we're really comparing apples to oranges. Every astronaut is not a NASA astronaut and so they haven't had to undergo a uniform skill test but there are still excellent odds that every astronaut is qualified for their role even if they are below the median "astronaut". Yes, it could be argued that every space agency has some sort of test, but the same could be argued of every employed dev as they'll have had to pass an interview.
Again, not saying that every dev is a good dev, but that median is a silly measure.