Which is, of course, why productivity increased when they instituted the 8 hour work day and is, of course, why Americans only average something like 3 hours of work in an 8 hour day. Because more time working means more work done. Obviously.

It's also, of course, why people are still starving when agricultural output easily exceeds consumption. Because of food scarcity, obviously.

This must also explain why in Britain, notorious for underpaying doctors, becoming a doctor is still one of the most desirable occupations. Because people won't pursue societally necessary jobs if they don't pay well. Obviously.