I don't want to say that having power is overrated, but powerlessness can give rise to a different kind of authority, and that's the kind of authority that writes books.
I think being central to the culture is overrated. Who really gives a damn if something is popular? Jay-Z isn't actually any better than James Joyce even though more people understand him.
Even though I think writers can sometimes thrive from being misread. It can give them something to push off of.