Moloch does require people willing to sacrifice some values or externalities in exchange for individual benefit. At scale, there's always people willing-to or forced-to or unknowingly doing that. But the examples you write about are mostly related to "individual contributions". You don't need all individual contributions to be like that for Moloch to be able to exist. You only need some, and scale. And then, the more pressure we have in a system, the lower the bar becomes for individuals to be willing to sacrifice certain things. I don't believe what you say points at any real contradiction.
That being said, I do not necessarily agree with Scott about the conclusion that we really can't coordinate unless some super-AI "helps us destroy Moloch".
Yeah, I think Scott loses his way at the end of that post. He is overestimating the chance that Warg Franklin’s approach is doomed; once you correct for that, it is not clear that trying to construct a values-aligned singleton is the best path forward, though I’m not opposed to research along that line.
That being said, I do not necessarily agree with Scott about the conclusion that we really can't coordinate unless some super-AI "helps us destroy Moloch".