The Principle of Utility Relates to Justice

Justice implies something which it is not only right to do and wrong not to do, but which some dual person can claim from us as his moral right. No one has a moral right to our generosity or beneficence because we are not morally bound to practise those virtues towards any given individual. In the importance we put on justice as a good, as opposed to many other goods, is just because we've found time and time again, these are such important things to protect. To get around it, i guess you have to revert to what i think is this deonthological thing, where you have to treat people as ends.