The central unit of moral station

Some say duties are merely the shadows of rights. If I have a right to X, then you have a duty not to interfere in my use of X or to provide X if I lack it. As such, duties facilitate a moral universe predicated on private property, where a right is an elementary unit of privacy and property. That is the world of scarcity and privation. 

In a world of abundance duties have an altogether different cast. Duties are the central unit of moral station, and rights and private property are vague and ambiguous because most of what is available was not created clearly by anyone in particular. Most things in a world of abundance occupy the shadow-land of neither here nor there, neither mine nor yours. Most things were either given by some 'other' or belong to the public weal and don't lend themselves easily to endowment as private property. 

The issue in such a world is not what belongs to whom but rather how we fulfill our stewardship by dispatching what we've been given to redeem the gifts of grace that abounds.