In "A Good Man is Hard to Find," the grandmother is hypocritical, manipulative, and selfish. Is the best theme?

I agree
that the grandmother in "A Good Man is Hard to Find" is hypocritical, manipulative,
and selfish, and I don't think O'Connor wants us to forget any of that. At the same time, I
believe she pushes us to look a little further and a little deeper. O'Connor was a devout Roman
Catholic and is, at the story's end, trying to make a point about God's grace. She wants to
illustrate that God's grace is capable of...