Earlier quoted context omitted.
What's a counter-example at a reasonable scale? By reasonable scale, I mean millions of people.
I never understood why the "at reasonable scale" is presumed. What happens if I reject that presumption? Why do we assume "millions of people" operating in the same social order is a good thing? Because iphones? Is that reason enough? Do we presume that having millions of people under the same social order is required to make advancements in medicine? It didn't take millions to build Linux or wikipedia, just a couple…
Maybe it didn't take millions of people to build those things, but it did take millions of people to create an environment in which building those things could be considered a productive use of time.
The people who built Linux and Wikipedia didn't build it just for themselves, and indeed neither Linux nor Wikipedia would survive (in their current form) if they were not useful to millions of people.