Who Should Own Creative Content?

Something that the combination of this BAD uncut film and the Vox article "This is the best version of Star Wars--and watching it is a crime" got me thinking, is who has a right to create something, contribute to it, and benefit from it? My first reaction to watching Star Wars uncut was that it was horrible, and there is such a thing as giving fans too much power in fandoms. In the past, some films or television shows have listened too heavily to fan theories and input, and have sacrificed the integrity of said media entirely. But on the opposite end, some creators have completely gone overboard and ruined their own creative work in certain ways--for example, George Lucas in the case of adding in terrible CGI to the original Star Wars and other terrible additions he made, and JK Rowling tweeting unnecessary additions to the Harry Potter world that none of us asked for (also for her blatant transphobic tweets...but that's another issue entirely). I'm all for world-building, but these extraneous circumstances are completely unnecessary! My first reaction is that someone should limit Lucas' control over the original films and I'm glad Rowling has no power over any of the HP films, but then as a writer...I would want all creative control and ownership over my work that I created! The Vox article accurately talked about how out of control copyright laws are, so my question is...

Should copyright control be limited to the creators of said creative work? If so, what does that look like?