Not everything takes off the same way. Lots of people are investing in meme coins to turn around a quick profit rather than investing in long term projects. It's just the phase that crypto is going through at the moment.
PoW is the goal and gas of the crypto consensus world and will be largely replaced with PoS for sure. But despite that if crypto as a whole and those that use PoW can be used to innovate better ways of producing electricity then it will leave a lasting legacy.