@lelouchebag
It works on people, who are easily influenced by peer pressure, because you have all of the important factors to them.
1) percieved authority (teacher) giving them the right opinion and sometimes shaming the wrong anwser
2) collective, that isn't fighting back obvious injustices.
Although, it does seem to build serious resentment and character in anyone who was suppressed.
Nature made humans ducerse in this way, because no matter what decision the society is making, tbe oposite must be present. If society is wrong, the dissidents will survive. Othervise, the society will. But either way, you cannot kill off everyone on one bad decision that way.