I mean, there's quite a lot of famous employers that pay you a lot of money to work more than 40 hours a week no? But also, the nature of education etc means t

I mean, there's quite a lot of famous employers that pay you a lot of money to work more than 40 hours a week no? But also, the nature of education etc means that a mediocre developer who works 70 hours a week, will probably be less effective than a brilliant savant working 20 hours. Usually, instead of paying the mediocre developer to work 80 hours a week, it's cheaper to pay a better developer double, to work 40 hours.