The thing is it can be quite profitable for the biggest possible VC firm out there. The government.
The Interstate System spurned so much economic growth and thereby new tax revenue. Weve just pissed it away on stupid shit and have failed to maintain critical bridges and things like that.
It's also possible to just write a bad question/exam and recognize you need to do better as a professor.
I had a physics professor who graded himself on whether or not he wrote/taught well by the grade distribution. He was always transparent about it and had benchmarks of how it went previous years. He was also one of the most sought after professors.
I also had s philosophy class where the best grade over the entire semester was a 30 and the professor was like yeah this is just expected. You get an A. This guy obviously derived enjoyment from not being a good teacher and for humiliating his students that they really knew nothing about philosophy. That guy sucked.