Sure. But bundle them into CDOs, give them the AAA rating, start selling options on them and suddenly that's a legit business. NFTs are missing this thick layer of complexity that obfuscates the nature of the core financial "product".
An NFT is more akin to a baseball card - it’s value might go up, but that would just be because someone wants to buy it. It’s not producing any income on its own and the owner is no right to recoup the money they paid for it.