I'd think the more realistic egalitarian opposition would be between, say, (100, 35) and (50,34), i.e. the very rich getting even richer while the poor stay still. There are probably a few who would hold the (10,9) < (9,9), but that's much less realistic.

The real problem with PE is that it specifically determines the "fairness" of a marginal transaction, not the fairness of the actual distribution.