When people hug the world shrinks - it is harder to then injure or kill the person you have just hugged. When people take personal responsibility for their behaviour they make the choice about who they hug and what they then do in the world.
If people overcome their personal pain and are emotionally healthy they can move on to having emotional wealth. This encompasses being compassionate, having integrity and finding serenity within themselves.
Thus the world is changed one person at a time. This is a starting place for people to make the world a kinder, healthier place for everyone.