Duties of civil authorities
The exercise of authority is meant to give outward expression to a just hierarchy of values in order to facilitate the exercise of freedom and responsibility by all. Those in authority should practice distributive justice wisely, taking account of the needs and contribution of each, with a view to harmony and peace. They should take care that the regulations and measures they adopt are not a source of temptation by setting personal interest against that of the community.
Source: Catechism of the Catholic Church (Vatican.va)