A licensing deal for rights to make money off an intellectual property. I.E. a way to use their wealth to profit even more off something they didnt make. Music industry has fun examples of musicians having to rerecord songs because an ex-record label still owned rights to the original. So there’s situations where a musician entirely created and recorded a song and isnt allowed to sell that recording. And authors and musicians are the closest to owning their work they make a living off of. Any kind of industry visual artist has no ownership of anything.

Copyright is an issue with capitalism. It only exists for wealthy to profit off of.