It’s supply and demand, not prestige. There are few perfessorship positions, and many qualified to do it, so there is great supply. In this case, supply is high

It’s supply and demand, not prestige. There are few perfessorship positions, and many qualified to do it, so there is great supply. In this case, supply is high even without high pay due to the prestige. FAANG high salaries are due to the low supply of engineers skilled enough. Otherwise, FAANG would not compete on pay. As high as FAANG pays, supply is still not high enough to lower pay significantly. OP is arguing that teachers should not be compared to professors because supply may still not be high relative to demand. Additionally, the job is still essential enough to keep demand high despite lack of prestige.