Does Mr. Underwood confront society in To Kill a Mockingbird?

Mr. Underwood is living a double life in To Kill a Mockingbird because he supports and cherishes the black community- raising his half children, living with his black wife, spending time with the black folks more than the white- but he also pretends to be a drunk just for the sake of the white people, which goes to prove that Mr. Underwood still cares about what the white people (and his own people) really think even though he preaches that the white people don't accept the black.