This is so over the top that you might as well name and shame here to lend credibility to your story. What school in what "area" are you talking about?
I initially downvoted you because your story was obviously untrue. But... I was unthinkingly assuming you were American. I undid the downvote, because I have no idea what schools in your country are like.
This is a leftover from the communism where the whole point of the education system was to create obedient citizens who never dare to speak up against authorities. This was achieved by forming a strict hierarchy where those above you would shit on you and you wouldn't be able to do anything about it, but if you climb the social ladder, as a reward you'd get free pass to shit on those below you. It takes decades at best to fight the issue, and when you take into account the budget with which the ministry of education is working, it's pretty much impossible to hire competent staff at schools. The problem is particularly visible at universities, which have traditionally enjoyed higher degree of autonomy.
It's not all that bad though. Sometimes the teachers would bend the rules in the students' favor, which allows to treat them like human beings, rather than "computer says you fail".
