For those looking for more support (or criticism) for this way of thinking, the reasoning behind the priority view is quite similar to John Rawls’ arguments that people would adopt a maximin (making the least good outcome as good as possible) strategy when behind the “veil of ignorance” (imagining setting up a society in which you don’t know how advantaged or disadvantaged you’ll be). Here’s more: https://plato.stanford.edu/entries/original-position/