How to pray the “Cursing Psalms” against our enemies

Rather than talking about "Divine Justice" (as an analogue to human retributive justice) as Pius Parsch does in his introduction to the breviary, wouldn't it be better to talk about punishments/chastisements/etc. in relation to Divine Mercy or Righteousness?

Can God will an evil (or punishment) to a sinner for its own sake, without willing the further good of conversion or penitence, or just as a means to maintaining good order or discipline or to prevent them from doing greater evil, for the sake of others only? Or does sin suffice as its own punishment?