I am embarrassed by the industry. How many of our generation's best and brightest minds are doing crypto and day trading? Imagine if these minds were focused on societal problems -- energy, health, food. I know multiple Harvard CS graduates who went right into the crypto space. What a waste.
Besides shitting on other peoples choices, why don't you try to reach out to the graduates and ask them why they work in the cryptocurrency space?
Most of the people I know, including myself, have "improving the world" as the reason for working on cryptocurrencies. Even though you might not agree with that, you have to understand people see things differently in the world, and what you see as "the most important issues" is not often the same as what other people see as important.
What's even more important is to not shit on what others chose to spend their time on. Instead, be quiet and work on your stuff that is sooooo important and will solve everything with humanity.