No one can be saved without pleasing God.
No one can please God without faith (Hebrews 11:6).
Faith comes by hearing (Romans 10:17).
So how can someone be saved without hearing the gospel?
Also Romans 10:13-17 ends up being empty if we don't understand it as requiring explicit faith in Christ:
Whoever calls on the name of God will be saved.
People can't call in Him whom they have not believed.
People can't believe in Him whom they have not heard.
Therefore, we need to preach to everyone.
But clearly there is a hidden premise: we can only be saved if we have explicit faith in Christ. If we do not accept this premise, the argument does not follow logically. But this premise is explicitly rejected by the catholic magisterium:
"Those also can attain to salvation who through no fault of their own do not know the Gospel of Christ or His Church, yet sincerely seek God and moved by grace strive by their deeds to do His will as it is known to them through the dictates of conscience." (Lumen Gentium 16)