Today in Pacem in Terris, authority and morality are all tied up together:
136. Now, if one considers carefully the inner significance of the common good on the one hand, and the nature and function of public authority on the other, one cannot fail to see that there is an intrinsic connection between them. Public authority, as the means of promoting the common good in civil society, is a postulate of the moral order. But the moral order likewise requires that this authority be effective in attaining its end. Hence the civil institutions in which such authority resides, becomes operative and promotes its ends, are endowed with a certain kind of structure and efficacy: a structure and efficacy which make such institutions capable of realizing the common good by ways and means adequate to the changing historical conditions.
137. Today the universal common good presents us with problems which are world-wide in their dimensions; problems, therefore, which cannot be solved except by a public authority with power, organization and means co-extensive with these problems, and with a world-wide sphere of activity. Consequently the moral order itself demands the establishment of some such general form of public authority.
However, the challenge for many in authority today is credibility. Political scandals and a general approach of favoritism and mistreatment have eroded confidence and people withhold respect, cooperation, and most significantly, much of the drive that makes a society work well.