That's what they want you to believe. The truth is, to keep the influx of money into the crypto-sphere flowing, you need more people to invest money. This gets harder though, because most people who really care about crypto already invested.

There are only so many monkeys you can attract.

NFT is a solution to this problem: You promise a high return of investment for additional monkeys to invest.

This keeps on going until the whole thing crashes down burning. Those who invested first and really care already pulled out their share. The monkeys will suffer though.