This might be me talking out my ass, but my take on it is that the core of the people's morality has always been about looking after each other. If you boil away everything that the people have been willing to bend or discard if pressed that's what's left. When they can the people reach for more, but only when they can. It's not quite patriotism, but it's something very much like it. On on individual scale that shows up as a willingness to cooperate and advance the common good, but on a nation state scale, it's a cold calculating ruthlessness. The blackest of deeds is seen as bad only to the extent that the people are harmed by staining their hands, hence the use of proxies when possible. But hard times are when you need to take a lesser harm to stave off a greater one, and If the king needs to stain the people hands red and water their crops with the blood of others, so be it.