There might always be some people resorting to violence but this isn't a reason not to work to curtail its use and thus working toward making the initiation of violence obsolete.

Making the initiation of violence obsolete is the ultimate challenge humanity is faced with. There is no greater challenge and thus no greater reward, for if we can do away with the initiation of violence and abuse, an era of unprecedent cooperation awaits us.

Since its very beginning, life has evolve pressured by merciless competition. Maybe then, merciful social pressure could be one of our best tool to curtail violence and abuse.