Crypto is already involved in a variety of crimes. so I'm not surprised at that, because it's the same as fiat currency. evil people also use it to steal and use it also for evil. wherever that is really happening. the only difference here today in crypto, that it is easier for us to be aware of the trend of other users due to changes made by other projects. so we can see crypto is not made just for that purpose, it helps us today and I don't see anything bad in it to block it.
Well, the latter part of your statement talks about the variety of ways cryptocurrency and the Blockchain can be integrated and utilized to help humanity. Crimes associated with financing and money existed years ago even before the creation of cryptocurrency hence cryptocurrency is not actually the cause for financial crimes up-rise but rather the uncontrolled negative intensive taste for money and power of man.
Crime increases because of greediness. And doing crime in crypto world though not easy is also not easy to track by the government. Many utilizes it but some do not know how to take care and make it secure from hackers. There are people who are envy on other but lazy to do it himself.