From Pope St. John Paul II’s encyclical Veritatis Splendor (1993):
The Church’s firmness in defending the universal and unchanging moral norms is not demeaning at all. Its only purpose is to serve man’s true freedom. Because there can be no freedom apart from or in opposition to the truth, the categorical — unyielding and uncompromising — defence of the absolutely essential demands of man’s personal dignity must be considered the way and the condition for the very existence of freedom.
This service is directed to every man considered in the uniqueness and singularity of his being and existence: only by obedience to universal moral norms does man find full confirmation of his personal uniqueness and the possibility of authentic moral growth. For this very reason, this service is also directed to all mankind: it is not only for individuals but also for the community, for society as such. These norms in fact represent the unshakable foundation and solid guarantee of a just and peaceful human coexistence, and hence of genuine democracy, which can come into being and develop only on the basis of the equality of all its members, who possess common rights and duties. When it is a matter of the moral norms prohibiting intrinsic evil, there are no privileges or exceptions for anyone. It makes no difference whether one is the master of the world or the “poorest of the poor” on the face of the earth. Before the demands of morality we are all absolutely equal.
— Veritatis Splendor 96