Employee/boss status/relationship in the US

I'm just watching the Apple TV series Severance. And it's an extreme example of it, but it did make me think that so many US films and tv show this sort of dererence to authority. Like a higher job position is equal to higher status. You refer to your boss as 'Mr' or 'Mrs' whatever. And you are the lower, the subordinates.

And in the UK (in my experience) job titles don't really effect things in that way. Maybe in top corporate roles. But from what it seems, it is just a culture thing that is accepted. Is that really what it's like?