How does Miss Maudie defend Atticus? Why does she do this?

Chapter 24 gives insight into white women's society. Scout's experience with the Missionary Society women is somewhat mixed. She observes the hypocrisy with which the women try to do good for a remote culture like the Mrunas, but neglect the needs and sufferings of the black community in their own town. Miss Maudie is the only woman who seems to show any appreciation for conscience. While Mrs. Merriweather's negative comments are not so subtly thrown at Atticus, Miss Maudie points out that they are happy to enjoy his hospitality while criticizing him behind his back,

"His food doesn't stick going down, does it?" (Chapter 24)