Full Idea
Modern moral philosophers have been considerably more skeptical than were the ancient Greeks about the close association between the flourishing of the individual and that of the community.
Gist of Idea
Nowadays we doubt the Greek view that the flourishing of individuals and communities are linked
Source
Linda Trinkaus Zagzebski (Virtues of the Mind [1996], II 2.2)
Book Reference
Zagzebski,Linda: 'Virtues of the Mind' [CUP 1996], p.99
A Reaction
I presume this is not just a change in fashion, but a reflection of how different the two societies are. In a close community with almost no privacy, flourishing individuals are good citizens. In the isolations of modern liberalism they may be irrelevant.