But I'm not trying to reach it from the top down. I don't know what you're insisting on a directionality. Individual and collective interests can be in tension with each other, and the maxima of the latter seems to be highly contingent on some concept of the former. As demonstrated by collective action problems (see: tragedy of the commons, uncaptured negative exterbalities, incentive structures for non-violent dispute resolutions like rule-of-law).