The emotional battery certainly doesn't end with our childhood, but continues to increase as we enter the work force. In the working world we find ourselves in the service of others be it a manager, co-worker or customer. Generally the people we service are incredibly ungrateful. There is rarely a sense of thanking the person that is servicing, but instead a sense that the service agent "should" be servicing and thus there is no thank you, rather a "you will bow before me and service my every demand or I shall see to it that you are fired and have all your worldly possessions taken away."
Especially for the customer service agent this comes with a constant barrage of name calling, snide remarks and general belittling. This form of hatred causes many of the service people to become angered and spread this hatred to others. Most of the time this hatred is spread via similar means such as road rage, battered spouses or children, animal abuse or service agent abuse. In some cases the person cannot take the abuse anymore, he snaps and "goes postal." To make matters worse a service agent cannot simply refuse to service an ungrateful undeserving tyrant for he would lose his job and worldly possessions. In this society one is punished for refusing to nurture the arrogant, greedy, ungrateful ways of the tyrant and so the problem continues to grow.
In a society where the majority of citizens believe themselves rightful tyrants violent crime such as physical and emotional battery, murder and rape will persist. One cannot eliminate these problems by locking them away, the root of the issue must be addressed. People are assholes who are taught to believe themselves tyrants.