As I mentioned before ---admittedly, I do not have CAT scan vision into souls -- but according to their own testimony, I have never seen Catholics profess that they do good to the poor out of fear of eternal damnation, but rather because they are "impelled by the love of Chris" to love as they have been loved.
Fear of hell, though, as an element of motive in doing good and avoiding evil, is not to be flicked away like a piece of lint.
I don't know if you have heard of Franz Jagerstatter. He was the only -- absolutely singular --- Austrian during WWII who was executed for refusing to be conscripted into the Nazi Army. One influence which strengthened his resolve to give his life, if necessary, rather than cooperate with the Nazis, was a dream he had. He dreamed he was about to join the surging throng and board a train (which he associated with Hitler's movement) when a Voice restrained him. It said "Do not board that train, Franz. It is going to hell."
Trusting God and resisting to the end, Jaegerstatter was beheaded at Brandenberg Prison on August 9, 1943.
If you read the letters--published decades later--- which he wrote to his wife and three little children, you can see he was a man of love. But his will to do what is right was purified, one could say, by his horror of the literally damnable nature of cooperating with Nazism's diabolical evil.
Well I don't either...But since this is what this Mr. Pope and the rest of your Church teaches it's reasonable to assume that since Catholics continue to be Catholic, they believe this teaching...