Let me take your points one by one.
Teachers report that the problem children who are drugged are more cooperative in class.
Maybe the advocates of the use of stimulants are deluded but it is a delusion that is making the advocates content and doing nothing beneficial for the children. Probably because you are an apologist for the drug establishment. If you think there is a more benign goal behind the use of these drugs you are wrong. Morally reprehensible in my view, but legal. Unless you are lying.