Those artists who say that somehow therapy or analysis will thwart their creativity are completely misinformed. It's absolutely the opposite: it opens closed doors.
The only economic paradigm that movies have ever known is capitalism. There were no church sponsors or state patronage. The idea was that if you'd pay to see it, we'll make it for you.
If you write interesting roles, you get interesting people to play them. If you write roles that are full of nuance and contradiction and have interesting dialog, actors are drawn to that.
I was raised as a Calvinist, which is doctrine-driven. And though there are many things wrong with Calvinism, you are at least encouraged to argue about things.