Mercy isn't so much the first virtue one identifies with Roman Catholicism. Historically, the RCC in effect unmercifully enslaves people-thinking to its institutional legalisms.
'Roma Aeterna' is as corrupted and corruptible as any human city. Personal conscience has too much been torqued to self-identify with institutional indoctrination. Cultural mind-enslavement effectively derails the track of mercy. Pope Francis has a very different vision of personal church. Interpersonal relationships qualify authentic religion, authentic church.