There is a difference between “what is my actual utility function (including altruism)” and “what kind of society do I endorse”.
The former is more selfish (for evolutionary reasons) and does not scale much (because of cognitive limitations of my brain). The latter is more egalitarian (to get buy-in from other people).
From my perspective, the ideal outcome of the universe is that I am the king, but all my subjects live very happy lives. That satisfies both my selfish and my altruistic feelings!
The problem is to convince the other people that the king should be me, and not e.g. them. And if I can’t convince them, the result may be a war where lots of value get destroyed.
So maybe we should settle on a universe with very happy people who have no king, to avoid the war. Not perfect, but better on average than having the war.
It might be interesting to know, whether they promoted violence on LW, and whether it got upvoted or downvoted.