Or perhaps hedonistic materialism. When Buber speaks of material he uses it only to indicate that we can only experience things rather than relate to them, so in that context, when I say materialism I don't necessarily mean it in the common parlance, only to point out an abstract relationship.

Another incidence of community spirit... during the "great depression" when people had considerably less- they gave more. I forget where I saw the study, but during periods of prosperity, charity seems to shrink. Another interesting aspect of human nature.