I think that if you can't compare utilons among states of aggregations of people, you can't make very basic comparisons of a type that pretty much everyone makes. You have to at least have a partial order which allows at least some comparisons.
That sounds like a very... lukewarm assertion. So maybe you can't make very basic comparisons of a type that pretty much everyone makes?
The basic issue is that you need to have a single metric applied to everything you're trying to aggregate and I don't think it works this way with estimates of individual utility. You need to convert utilons into something more universal and that typically ends up being dollars :-/
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