It's like they've pretended for so long that they don't need rest that they've forgotten how important it is. Because the most important thing is (apparently) the quantity of hours "worked" not the quality of work done or the actual amount of work achieved in that time.
I've been in job situations just like you describe. It's pretty damn ludicrous and it would be hilarious if it wasn't so frustrating. It's also pretty sad. Like why chose to devote your precious time to work you barely even care about and therefore don't even do well? Sounds like these people just need others to look down upon! Maybe that's all they have left... :/
Take care of yourself out there!
(: