It seems to be the same in every company. Layer upon layer of managers and supervisors that don't actually DO anything.
Companies would be so much more efficiently run without them, so what causes this?
EDIT: I think I might have something of an answer here thanks for @ABigguhPizzahPieh 's comment/video they posted. So, the notion of "robots are going to take our jobs" has actually already happened, and it's been happening for decades. There's just not enough work to go around for everyone. But reducing the work week from 40 hours is obviously unconscionable in capitalism, because working people aren't allowed to have nice things or better lives, so instead there has grown a massive layer of managerial and clerical type "workers" who are paid to do nothing for 40 hours a week and are miserable for it.
The way I look at it is this:
Any business is a microverse of capitalism as a whole. Pyramid scheme - small top, huge bottom, but an ever upward dwindling middle.
The middle is the PMC. It's what all the children of bottom layers strive to become. But competition is fierce because the owner's 25 year old airhead child needs a place to plant their ass, and they're certainly not going to the mailroom.
The kick in the balls is, if they allow you up the pyramid, life gets abundantly easier workwise so everyone tries to look busy, or the elite will dream up busy work that may possibly require more hours and time from the PMCs versus the workers who reside below them, with the promise that one day the middle managers might ascend. Some, a select few, will figure out how to make some company dependencies completely rely on their know-how. But for the rest, it's just busy work for the sake of busy work. To eek more productivity out of your underlings, or to chase new business. Always something you're not doing enough of.
That day of ascension and promise of promotion never comes. Because the top is not for you. The middle is barely for you. And if they don't like you, they'll can your ass and replace you with another true believer. And the cycle continues.
I also have a theory that if there was no buffer between workers and the elite, the elite would all show themselves for what they are and there would be worksite revolutions everywhere. They kind of need the buffer of class traitors who can take the heat but still talk like a poor.
Killing your boss solves a variety of problems. Killing your manager just creates new problems. Hence, managers.