Your rewrite of the question misses out the “Do they?”, which links my question to the claim made by the poster I was replying to. That is the context of the q

Your rewrite of the question misses out the “Do they?”, which links my question to the claim made by the poster I was replying to. That is the context of the question. The links you posted don’t answer that question. They have nothing to do with the study of those subjects, only the generic act of getting a degree. Indeed those papers show the converse of the OP’s claim - they show that you do not need to study those subjects to get those benefits - any degree will do.