We can be absolutely required to do good works, and yet not be saved by them.
True! As a Catholic, we must go to Mass every Sunday and receive the Blessed Sacrament.
“But will you know, O vain man, that faith without works is dead?” James 2:20
“Do you see that faith worked along with his works, and by the works the faith was made perfect?” James 2:22
From the perspective of the Church, those Congress critters are doomed unless they run to the mercy of God. But...their arrogance will be their undoing.