Good point. But money does not equal finance nor banking, it's just the medium in which they operate. Signup for a cryptocurrency exchange and you will need to sign a similar document to your bank's, where you agree to provide your real identity and are informed as to the legal limits of the cryptocurrency you can purchase. To me, buying something illegal with a bitcoin you bought on a legal exchange, is no different than buying something illegal with a hundred dollar bill your withdrew from your bank account.
Money doesn't commit crimes, people do.