Isn't that the whole point of NFT's?
Not that I would buy one, but in the US (and many other countries), we worship our celebrities, and it's not surprising that someone would pay a lot of money to be considered in an exclusive "club" with them (and BAYC intentionally plays into this angle), at least as long as the celebrities continue to hype it.
Also, bragging rights is what makes lots of "luxury" things valuable. Most people on the streets wouldn't be able to tell a diamond from zirconium, or a rolex from a knockoff.