I think the post has kinda contradictory parts. The beginning says that a requirement of formal training, like in medicine or architecture, or transport plannin

I think the post has kinda contradictory parts. The beginning says that a requirement of formal training, like in medicine or architecture, or transport planning, is desirable. But then a number of examples are given, that suggest that degrees are orthogonal to skills and promotion, and instead being aggressive promotes better than excellency. So how a compulsory degree would fix this corrupted promotion mechanism?