The rationale, at least in part, is that people with high IQs get bored and quit and the department loses out on the money they invested in training.
Nothing Can Stop a Biden-Trump Rematch, How did the country end up with a choice that most of its voters don't want?
I teach this in my high school classes when they vote on the rare movie days. It really hits them how much more fair it is.
Just read it with a bad Italian accent.