Referring back to counterargument one, this again assumes the a priori existence of individual rights. Moreover, following this logic, as all individuals would, behind a "veil of ignorance", most certainly choose to live is a developed, prosperous nation, all developed nations would have the moral obligation to literally relocate the entire population of the developing world into their own countries. Simply because something may be seen as "preferable" to some people does not a moral imperative create.  Further, this experiment assumes universality of any conception of rights or "human rights". The subjective nature of what it means to be a human being between different faiths and cultures leads to different conceptions of what "dignity" means to humanity and thus enforcing the conception of "dignity" held by the militarily powerful on other states does not necessarily protect it, but in many ways can erode it.