(1) Medicine does not have an answer for all mental illness. Many are incurable, and only manageable.
(2) Sometimes even the management is not good enough.
My uncle is extremely intelligent. Also has schizophrenia. Like Michael... extremely intelligent, PhD (received after diagnosis), etc. It's been many years. He has kids and grandchildren, etc. But... he still breaks from time to time. He's even attempted flat out murder. There's no answer really. His wife (my aunt) can get him to calm down, as can his children. But, it's still there, despite everyone's best efforts.In my view, short of completely numbing his personality and individualism, I can't see how anyone can 'fix' it.
Further lost in our conversation as it pertains to drug abuse is the importance of not creating the problem to begin with. Schizophrenia is no joke. Several commonly available (some decriminalized) drugs can induce schizophrenia. We must do what is necessary to ensure this never happens. The mind is a terrible thing to lose.
EDIT: Also, having also worked at Bain, I do not suggest anyone work in management consulting if they want their sanity.