You don't know much about the history of mental disorders. Do you want to talk about destroyed lives? Before then, people were locked up because nothing could be done to help them. This is what the medical community was trying to change.
You don't know much about Nobel Prizes. All these operations were experimental. No one was claiming that it was a cure for mental disorders but in some cases it had an undeniably positive effect that can't be dismissed even today. That proved that it was having some positive effect and it certainly promised better treatment as more was understood about the brain. This is what will win you a Nobel Prize.
I have personally seen people so delusional that they couldn't count to twenty who were then back in college classes a week later after getting medication. This was back in the 80's when all they had were crude dopamine blockers like Haldol.
There are thousands of chronic schizophrenics who are completely aware of their disease and gladly take medication because they have found it allows them to live functional lives. Even more persuasive are the cases of acute schizophrenics. These people only have schizophrenic periods, usually triggered by stress or other conditions. They can tell you that during a schizophrenic period, medication will allow them to function nearly as well as when they're not going through a period.
But you're right about one thing: there is no cure for schizophrenia and no legitimate doctor will tell you anything else.