The idea that all the people locked up in mental hospitals are sane while all the people walking about are mad is merely a literary cliche, put about by people who should be locked up. I assure you there is not much in it. Taken as a whole, the sane are out there the sick are in here. For example you are in here because you have delusions that sane people are put in mental hospitals.
We cross our bridges when we come to them and burn them behind us, with nothing to show for our progress except a memory of the smell of smoke, and a presumption that once our eyes watered.