If I am a leader of a state and say I want to invade another state to pillage their resources, some people would object. Maybe not the majority, but enough to cause political problems. If I start media campaigns that women or children are being oppressed, or that that state plans to invade us or an ally, it engages an amygdala response, rather than a prefrontal cortex response, and visceral emotions will almost certainly carry the response from the majority, even if we oppress our own women and children, or plan to invade a state for their resources, anyway.