Global inequality is such an abstract concept, simply because there is no global government. Telling people in rich countries who have had no increase in real incomes, stagnant median wages and so on, that on the other hand global inequality is going down because people who are much poorer than them are getting richer - it's something that maybe they would like in an abstract sense, because everyone is happy there are fewer poor Chinese, but you may not be as happy if these Chinese are taking your job.