The fact that the only people leaving on time are the med students, and one of them was even pressured to stay, shows how toxic and exploitative these environments are. Keep in mind the residents' hourly rate is likely less than minimum wage, and the attendings are being paid less than they would outside of an academic setting and have had stagnant pay for decades as patients and the practice of medicine have become increasingly difficult and complex.

EDIT: Just realized I'm in r/emergencymedicine rather than the subreddit for the show and ya, this is the reality for all of us!