We change our behavior when the pain of staying the same becomes greater than the pain of changing. Consequences give us the pain that motivates us to change.
Without the ability to end things, people stay stuck, never becoming who they are meant to be, never accomplishing all that their talents and abilities should afford them.
Your business and your life will change when you really, really get it that some people are not going to change, no matter what you do, and that still others have a vested interest in being destructive.