if i recall my friend who was doing the dark knight quest told me that meny Auri who fled to ishgard were killed on sight, due to there appearance, however the au ra dark knight and WOL may have a special reason for being kept alive (such as your allowance from house fortomp) but to mix that with the gridania white mage listed above, it seems the Au Ra were not welcomed into eorzea as people think, it seems they were slaughtered solely on looks.