Why do the "fine folks" criteria not preserve sam Levy from having the klan parade by his house? (To kill a mocking bird chapter 15)

In Harper Lee's novel To Kill a Mockingbird, the criteria of "fine folks" is used by Aunt Alexandria to describe people who live according to strong moral standards. The Levy family are considered to be hard-working, pleasant, and honest members of the community. They are not racist against African-Americans and, in fact, are willing to stand up for African-Americans and their rights. While the Ku-Klux-Klan does parade by Levy's house--in part because he and his family considered to be overly friendly to African Americans--Levy does voice his objections to the Klan member's actions and ideologies and shames them for their beliefs and actions.