Not all nobility is created equal - in some countries, nobility is not much better off than the normal person. In other countries there's a huge disparity due to tyranny or whatnot. Look at an emir from Dubai for instance. Even among other emirs, there's no equality in wealth or power. But all emirs are substantially better off than the average citizen of the UAE. I would probably stick to a combination of Privileged, Born Rich, Rank and Fame. You could make it a single quality with lots of values, and just say that the player gets to pick up to that many quality points worth of those four categories.
