It's a tooling problem more than a budget one.
In fifty years I think we'll be telling the machines what stories we want to experience. But between now and that dreamy future, there are intermediate points along the path that empower individual or small groups of creatives to lift mountains - I think of it much in the same way as languages and tools and libraries make it so we don't have to string together vacuum tubes to solve our problems. Think about the kinds of problems filmmakers face: writing a cohesive narrative, finding and lighting a scene, editing massive amounts of video. It's all just a problem of tooling.
When there is a way that lets you or anyone with an ounce of creativity turn their dreams into polished, watchable content, it will democratize storytelling.
If you have ever seen the prequels, neither can George Lucas....
https://www.news.com.au/finance/business/media/the-secret-we...
https://www.webfilmschool.com/independent-filmmaking-the-7-m...
It could be. Imagine a world where movies don't cost millions of dollars to make.