Pecking order is everything.
In most organizations, exercising said disrespect for subordinates is a key method for management to demonstrate, enforce, and enjoy their higher social status.
Similarly, subordinates must exercise respect and deference to the time, space, and attention of management. This is a key method to help employees demonstrate, acknowledge, and internalize their lower social status.
Any threats to the status hierarchy threaten the structure of the organization and are usually dealt with harshly.
I've seen it take 6hrs+, running past 5 o'clock or sometimes starting in the evening and running for hours.
During the pandemic, I unplugged around 3pm to grab some new shoes for a kid that had ripped theirs out, because other guys were around and after 5pm I'm on my own. Boss starts texting me, "where are you" and "you should do this stuff after hours"...
This really left a sour taste and I've since moved on.
We need some sort of ability to demand OT, hour for hour comp time, and after hours compensation. One person can fight back, but we are constantly undercut by management. I would often try to comp time and get hit up because it's a busy week, then later that comp time would evaporate and I'd get alot of flack trying to claw it back. My preference is not to comp my time in the morning, but I'd end up clocking in an hour later afew times a week just to try and get some of my time back.
Where I have problems is being expected to be available while "on call" but not being paid for it. In my opinion: if you can't get shit faced, you're working, and should be compensated accordingly with all working time regulations applying as normal.
Then i opened a bottle of whisky, and listened to them try to figure out how much data we lost, until about 5 AM. I don't remember if i was hourly contract or hourly employee at that point, but i did get ~8 hours of pay that evening for doing nothing but not unmuting my voice on the phone call!
I don't do Disaster Recovery anymore, no one really listens.
The word is "union". You want a union.