I don't agree it's no different to now. The difference is, availablilty, anonymity, and action at a distance. A bad guy can send a car a couple hundred miles away full of explosives or they can remotely drive it. When it's ubiqitous things maybe change. People were arguably not as jerky before the net. The ability it sit at a screen and type anonymous invective unleashed or amplified supressed behavior. Self driving cars (and drones) might do the same, make it so easy to do certain types of bad things that more people will do them than happens today.