You don't need to be a billionaire to count as "bored rich", which I take to mean anyone who has too much money lying around and can't find better uses than shitty computer-generated "art" (note that this doesn't include people who buy these with the sole purpose of flipping them to a greater fool).
There are a surprising number of bored rich people, especially when you consider all the new-found crypto wealth. Most of them probably haven't contributed any of their excess wealth to help the hundreds of millions of people who are still starving, so if NFT is one way to extract some of that, so be it.
>> (note that this doesn't include people who buy these with the sole purpose of flipping them to a greater fool).
Hate to burst your bubble, but that is 99.99% of the NFT market. There is maybe 5 people total who bought a NFT for art appreciation reasons, but aside from that rounding error the only reason anyone owns one is as a speculative investment.