Roman Catholics put their faith in Christ.
Those who have faith in Christ are saved.
Grace is given to all those who are saved no matter what you do, you are locked in regardless.
Why do you care what Roman Catholics do? They are Grace filled servants of Christ since they believe in salvation through Christ, right?
They put their faith in Christ + the Commandments + having to believe the Marian Dogmas + having to believe all the dogmas issued by the pope + having to comply with certain "days of obligation" + whatever else Roman Catholicism has deemed necessary for salvation.
So no...the Roman Catholic does not place their trust exclusively in Christ in contradiction of revealed Scripture.
And they 'believe' LOTS of other things; too. FACT.
On the other side of the coin:
Why do you care what Protestants do?
Uh...
...never mind.
"One indeed is the universal Church of the faithful, outside which no one at all is saved, in which the priest himself is the sacrifice, Jesus Christ, whose body and blood are truly contained in the sacrament of the altar under the species of bread and wine; the bread (changed) into His body by the divine power of transubstantiation, and the wine into the blood, so that to accomplish the mystery of unity we ourselves receive from His (nature) what He Himself received from ours."
--Pope Innocent III and Lateran Council IV (A.D. 1215)
Yup; it's still in force!