At least for George Lucas, he was self-funding to start Star Wars and did not want Hollywood to own a piece of the pie (source: https://www.imdb.com/title/tt041

At least for George Lucas, he was self-funding to start Star Wars and did not want Hollywood to own a piece of the pie (source: https://www.imdb.com/title/tt0416716/ https://www.imdb.com/title/tt0416716/). I'd think that would count for something in that he'd want others to realize joy in a similar model of creation.