Just as the two characters were both dogs, but Pluto was subserviant to Goofy, and treated with less rights, based perhaps on some of his other characteristics.
With the new planet named Goofy, the class division can still hold.
"each is clearly marked with an unbreakable seal."
that sounds like a challenge...
(and where a fraudulent fortune can be made, or because it is there, challenges get conquered eventually)
Some reasons then why one might want a different model
Now I am not really going to make the moral judgement of how long someone should be able to copyright their works, and hold them in their own tight control. I would believe that old works should be public domain at some point, and also that creativity deserves some reward.
However, there ARE points in between in which both the artists and the public can benefit overall, and as the Grateful Dead and other artists have seen, giving to your public does not always mean taking away from yourself as the artist. Fair use can help an artist, and the public domain help cement artist in history, but "permitted use" by an artist speaks directly to their strongest fan base and evangelists of their work. Even Stephen King has given away book chapters online, on the premise that you will buy the rest. He may not have gotten much richer, but I'm sure he reached fans.
Or if you prefer, you can wait in front of a book store in the mall to sign your books, and hope to explode into fame.
People are always available for work in the past tense.