Good observation; some of my oldest and dearest friends are good Roman Catholics. BUT, I've never observed any significant moral difference between them and good Baptists, Methodists, etc, or even good JWs, Mormons or atheists. I mean good people are good people and no religious belief has has a lock on good people.
I have no personal problem with others religious beliefs, I know religious errors don't disqualify anyone from the family of man. My differences are with religions doctrines, not personal, so we simply accept each other as people and respectfully go from there. In fact, and in spite of some folk's wild eyed accusations otherwise,
I've never seen people being snotty to others because of a different belief system. But, respectfully correcting hyperbolic accusations shouldn't be taken as a personal attack.
However, I have heard plenty of verbal snottyness between some snotty people but they are what they are and religion, as such, had little to do with it. Seems frictions follow contentious people everywhere they go! That should not be.