Now, I understand the need to do something, anything. It's human nature-- someone attacks you, you can only turn the other cheek for so long, because you begin to realize that your enemy doesn't perceive the compassion or understanding in you that turning the cheek represents, he only perceives that you are 'weak', and that the weak must be destroyed, lest it 'poison' the rest of his 'society'.
It's a balancing act, walking the fence between minding your own business and willfully interfering in the affairs of other people/societies/countries. Sometimes you need to hold back and resist the urge to get involved; at other times action is clearly called for.