You're radically overestimating how much teachers are paid. I lectured at a Canadian university and was paid $7k per semester long course with about 100 studen

You're radically overestimating how much teachers are paid. I lectured at a Canadian university and was paid $7k per semester long course with about 100 students. I could maybe handle 2 courses per semester (after some time to get my lectures dialed in), which works out to $42k/year for an engineer with a graduate degree. If anyone is QQing to the bank it's not your lecturer.