Utility and coin market cap are different things, just look at stablecoins or Monero. They are arguably more useful than Bitcoin. Hex is designed to surpass bitcoin, using staking to limit sell pressure. It's all about game theory, not utility.
People buy crypto only to see their number go up, even when they claim it's utility/technology/revolution etc...
You're dead wrong about that. Crypto attracts all kinds of people. Millions of people actually use it to better their daily lives. Millions of others use it sometimes and invest/trade sometimes, and then some only buy with the intent of offloading it at a higher price. It is those people that are attracted to projects like HEX. So in that way it becomes a self-fulfilling Ponzi prophecy.
Testament to what I'm talking about:

Rather than write me off as a hater, prove me wrong. What else is HEX used for besides hoping number goes up?