Who has integrity and dignity?

Although the story is set in a time and a place rife with racial injustice, with basic humanity often lacking in characters such as the Ewells, who perjure themselves and knowingly condemn an innocent man, to the men of the town who gather and demand the accused be turned over to them for a lynching, there are notable examples of dignity and integrity throughout the tale.
Atticus Finch, a brave man, willing to take a stand for his principles, knowing they are unpopular and even pose a danger to himself and his young children, is willing to advocate for those who have no voice, in a justice system that is rigged against people of color. The African-Americans who witness the trial, behave with dignity, despite the travesty they have witnessed. They honor Mr. Finch by standing for him as he leaves the courthouse, admonishing his daughter to stand as well.
Boo Radley emerges as a hero, saving the lives of the Finch children, in his self-appointed role as their quiet and dignified protector.

There are several characters throughout the novel To Kill a Mockingbird that have integrity and dignity. Atticus Finch embodies both character traits and demonstrates his integrity and dignity numerous times throughout the story. Atticus valiantly defends Tom Robinson in front of a prejudiced jury knowing that his chances of winning are impossible. Despite pressure from the community, Atticus does not compromise his morals and displays his integrity by defending Tom Robinson. Atticus also expresses his tolerant attitude and controls his emotions during conversations with prejudiced community members.
Both Sheriff Tate and Miss Maudie also have integrity and dignity throughout the novel. Sheriff Tate is an honest man, who supports Atticus throughout the story. Sheriff Tate does not subscribe to the prejudiced views of the other Maycomb citizens and does his best to maintain order in the small town. He tells the truth on the witness stand and also protects Boo Radley from the community's limelight towards the end of the story. Miss Maudie is a sympathetic, morally-upright woman, who also supports Atticus and is friendly towards his children. She refuses to gossip or conform to Maycomb's prejudiced ideologies and is a positive role model for Scout to follow. Miss Maudie does not believe the rumors Miss Stephanie spreads throughout the community and also challenges Maycomb's religious fanatics when they criticize her.