I interpret this as saying people can go to heaven/be saved, NOT by believing on Jesus Christ, but if they have "done their best" and do "good works". It sounds like it is saying those who don't hear the gospel of Jesus Christ can still go to heaven if they are good people. Is this how you interpret it?
Moses and Elijah didn’t know Jesus during their earthly lives. Yet Peter, James and John saw them talking with Jesus during the Transfigutation.
So can people of other religions be saved?
What about all the people who arose from their graves after the death of Christ and roamed around Jerusalem, visible only to the believers, until Jesus entered heaven and opened the way for them?? Were they saved?
I think that non-Catholics use the term “saved” much too freely.