Bullies are everywhere-on the road, at your workplace, in some people’s homes even families. You may not be a bully but I bet once or more in your life you expressed a bully streak. You know, your anger got out of control and you took it out on another person. Yet likely you had a great social system of friends, family, teachers, work colleagues who helped you back in line. Maybe you even had unconditional love and worked through this aberrant behavior before it took hold and developed into a habit.
Some unfortunate ones in our society do not have this help. They are either so far gone or allowed to get away with the behavior that it is too late. Not too late to change, but likely too late to have quality relationships that help the bully repent, recover and return to being a decent human being. Or more likely, lacking in the resources and people dedicated to helping them turn around.