How would you describe Atticus's treatment towards Calpurnia and Tom Robinson?

Atticus is a fair and compassionate man in To Kill a Mockingbird. In the case of Calpurnia, Atticus values her service to his family. In chapter 14, Aunt Alexandra tells Atticus that he no longer needs Calpurnia. Atticus disagrees and lets it be known that he considers Calpurnia a member of the family. According to Atticus, "Calpurnia’s not leaving this house until she wants to." Atticus realizes how important Calpurnia is to his family and treats her respectfully. He also knows his children love her.
Tom Robinson is Atticus's client. Many citizens in Maycomb County believe that Atticus shouldn't do much in defending Tom. However, Atticus believes Tom is innocent, and he defends Tom to the best of his ability. Atticus shows concern for Tom's well-being and places himself in danger to protect Tom from a lynch mob. During the trial, although Mr. Gilmer speaks down to Tom by referring to him as "boy," Atticus treats Tom respectfully. In addition, Atticus shows concern for Tom's wife Helen. He and Calpurnia drive to Helen's house with news of Tom's death.