The usage of btc is limitless and vaster than one would expect, it is true that it's filled with scammers but you really wanna claim IRL people is much better?
I'm not sure how you can claim it is limited to laundering money and non-legit stuff but perhaps you should explore a bit more, note that any bussiness that isn't gambling is likely to have a hard time, btc is good to be saved not spent hence the difficulties normal bussinesses are experiencing with crypto, this along how expensive btc getting to move. I could go deeper but I don't feel like writting right now.

If you insist anyhow I will make later a list of legit stuff you can do with crypto, gaming is changing btw .