The same thing , either in bitcoin or local money, no ones controlled tax evasion, money laundering , funding terrorist or buying drugs, just anywhere in the world. They said that what else money can not do? They just can do it even theres no bitcoin. One thing that bitcoin users were being an anonymity. It depends how you use bitcoin in your life. If you want to go straight with your aims about bitcoin with no wrong doings, then been so good. Bitcoin just help people to rise up their living through its projects and platforms. Bill Gates knows it through social media, nobody doing bad in there. Just showing their support to crypto currencies no more ,no less.