That has always seemed to me one of the stranger aspects of literary fame: you prove your competence as a writer and an inventor of stories, and then people clamour for you to make speeches and tell them what you think about the world.
But then acting is all about faking. We're all very good at faking things that we have no competence with.
Fathers and mothers have lost the idea that the highest aspiration they might have for their children is for them to be wise... specialized competence and success are all that they can imagine.