As a programmer who got an MBA, I can tell you that in my cohort there were absolutely extremely smart super stars who put the time into everything they do and have the talent to make good decisions and have the empathy to be good managers. There were also people who tried their best but their judgement was clearly lacking.
My cohort has Civil Engineers, Materials engineers, Physicians, Finance, Accountants.. and also art students and communication students.
All this to say you can't generalize a whole degree.