And Anakin brought order and balance to the force by balancing the light and the dark...but he killed hundreds (himself) and caused the death of BILLIONS with his actions. So yeah, if benders weren't around, the world would destroy itself. People will always hate and bending is a way for people to settle differences without making a nuke.
what he's doing is good, but how's he's doing it is bad. amon should seal the bending out of all the bad guys such as gangsters, thugs and or thieves cause the good and neutral ones who can bend use it for their lively hood. such as bolt benders make electricity, earth bender farmers soften soil, or fire benders in forges. the dude is lawful evil.