I think the social changes the evolution of this story and movie represent to him are far more important than the money. In fact, next to that, I think the money means practically nothing. Notice I'm not saying that starting the story-change domino effect of major character background/arc swaps are the best way to achieve it, because not everybody can handle it... some writers are up to the task, many are not, but nevertheless the changing societal perceptions and tides this current iteration represents is what King, I think, believes in, judging by what he's been saying ...
