> A student who does nothing beyond turning up to most of the lectures

Then adjust the cost of the course to reflect that reality. If the teacher is admittely doing zero work to help this student, then why does it cost so much. Teachers in this case are QQing all the way to the bank. This is just a smoke screen thrown up to distract from the fact that these students that don't work hard are being defrauded left and right.

Lecturing 30 students for 18 weeks at $9,000 per student would make me fanatically motivated to give them the knowledge that they requested. Give half to overhead, and that is almost half a million per year. That buys a lot of work from a single human.