Social Justice is a term used to denote the ideals of the dignity and harmony of people in societies characterised by a wide and fair distribution of economic resources and political power.
Society ensures Social Justice when it provides the conditions that allow associations or individuals to obtain what is their due, according to their nature and their vocation. Social Justice is linked to the common good and the exercise of authority.
Social Justice can be obtained only in respecting the transcendent dignity of humanity. The person represents the ultimate end of society, to whom it is ordered: What is at stake is the dignity of the human person, whose defence and promotion have been entrusted to us by the Creator, and to whom the men and women at every moment of history are strictly and responsibly in debt.
Catechism of the Catholic Church, nn1928-9