All I can suggest is that you do a little research on the Albigenses/Cathars and their beliefs.
You seem to think that only Christians can lead virtuous lives. This is quite in conflict with Scripture and with the various Church Fathers, all of whom assumed pagans and others could lead and had led such lives.
What Christianity teaches is that even the most virtuous life is ultimately futile. Without faith in Christ it will not lead to anything ultimately beneficial. True Christians are not so arrogant as to assume that only Christians can lead virtuous, even holy, lives.
Every Catholic country throughout history has specialized in corruption, filth, superstition and ignorance. Whenever real Christianity poked its head up, the Popes shot it down.
As for paganism, the Catholic church has embodied that ever since Constantine and Sylvester invited the pagans to flock into the church with their idols.