That's why they like war, for profits. They don't simply care about other people as long as they are making their bank accounts almost blown up by destroying mother earth, killing innocent people, and any kind pf destruction. That's the sad reality going on since the start of humankind, the greediness.
The nation that benefits most from war is the nation that causes war and enjoys war. You are right, they always say they don't like war, they are messengers of peace but actually they really want war to happen because that is the way for them to get rich quick. They only care about their own pockets and consider other people's lives as trash, so it is naive to believe what the empire says.
It's all about the survival of the fittest, rich people becomes even more rich by milking the lowest people in the society. There's no hope in humankind, we're all doomed. I'm not gonna be surprise if there's going to be a world war 3 soon.
There is no doubt that humanity is doomed and it is only a matter of time because of human greed. But about World War 3, I don't think it will happen soon or it will be a nuclear war like many people are imagining. I believe that war in the modern world will be economic war, biological war (disease, pandemic...) and they will be more unpredictable than physical war.