Holding an NFT can give you ownership of an image. If you have a bored ape NFT you own some legal rights to the image.
That’s because of contract law, and IP law. A contract assigns the copyright to the holder of the NFT, and governments enforce legal contracts.
The only thing that gives NFTs any claim to value is the fact that a centralized authority can enforce it. The entire concept behind the decentralized leaderless authority of the blockchain is a myth.