I keep coming back to C.S. Lewis, but he really does provide a lot of valuable insights and wisdom, especially on these terms. In one point in The Problem of Pain, he points out that one of the more dangerous attitudes of Christians of our time is our preoccupation with the virtue of mercy (charity). Indeed, this can be applied to progressive Catholics. He points out that there have been other points in history where mercy was not so highly valued, yet at each time, that people believes their own highly-raised virtue(s) to be superior and more pleasing to God than any other - be it courage or temperance or chastity. Do you remember when chastitity was an important virtue? Yet today, for our progressives, mercy is the be-all and end-all.
Furthermore, this, in speaking of how revenge and retribution are not inherently wrong:
Some enlightened people would like to banish all concepts of retribution or desert from their theory of punishment and place its value wholly in the detterence of others or the reform of the criminal himself. They do not see that by so doing they render all punishment unjust. What can be more immoral than to inflict suffering on me for the sake of dettering others if I do not deserve it? And if I do deserve it, you are admitting the claims of 'retribution'. And what can be more outrageous than to catch me and submit me to a disagreeable process of moral improvement without my consent, unless (once more), I deserve it?
(The Problem of Pain, 91-92)
Lastly, of forgiveness - and I think this is especially important. To put this in context, Lewis is asking if a horrible man who has lived a base life and delights in nothing but the suffering of others is deserving of forgiveness (after all, we have a compassionate God):
The demand that God should forgive such a man while he remains what he is, is based on a confusion between condoning and forgiving. To condone an evil is simply to ignore it, to treat it as if it were good. But forgiveness needs to be accepted as well as offered if it is to be complete: and a man who admits no guilt can accept no forgiveness.
(The Problem of Pain, 124)
In my mind, and in the minds of many of my fellows, progressive Catholics are guilty of condoning evil. You cannot forgive a pro-choice politician for his or her actions if he or she is not sorry, for example. And none of them are sorry, or they would change their ways. Thus their actions are condoned by many of "our own." Didn't Jesus dine with sinners? Didn't he forgive them? Yes, but they sought forgiveness, and he always told them to go and sin no more. He didn't say "No problem - see you the next time you cheat your neighbor or go whoring yourself!"