When you're writing you're constantly fighting demons to sit down and do what you do. If you listen to the voices outside your head, in addition to the ones inside your head, you'll never get anything done. There's enough inner strife. ↗
Sometimes string figures were used to illustrate stories, as in the case of an Eskimo example that depicts a man catching a salmon. Sometimes they had magic or religious significance. ↗
Granted, the writers, directors, producers, and that community make a great deal of money. But they might be choosing to do a whole lot of other things for the living they make. ↗