I agree with you that when there are a lot of problems in the economy people pay more attention to cryptocurrency. A lot of people use cryptocurrency for investment purposes.
More precisely, people who use cryptocurrencies are for the purpose of better income through the profits they can get, because the purpose of investing is just a step to find big profits in a certain period of time.
Investing is not just to get profit as you said above, but to increase knowledge about how the crypto market works, give us experience when we fail or win, also sometimes learn from previous mistakes especially how to manage finances properly + coins you want invested.