Here we know that software engineers, and entrepreneurs, vary greatly by their skill, knowledge and motivation.
Why do we expect that for other professions it works differently?
>Why do we expect that for other professions it works differently?
Gell-Mann amnesia most likely applies here.
Medical professions are so highly differentiated they have a whole additional layer of schooling enforced, besides being intensely regulated. Why are you omitting this? Clearly it ostensibly acts as a filter (maybe it doesn't, but then you should say that).