How does social injustice impact the lives of protagonists in To Kill a Mockingbird and in The Help (film)?

Although the action in To Kill A Mockingbird takes place about thirty years prior to the events in The Help, both works of art demonstrate the prevalence of injustice in the American South. Tom Robinson, the black man falsely accused of raping Mayella Ewell in To Kill A Mockingbird, is declared guilty and is sent to jail despite overwhelming evidence pointing to his innocence. He is later shot seventeen times when attempting to escape from prison. This vicious brutality demonstrates the community's and prison guards' hatred for Tom's blackness and highlights the unfairness of Tom's quiet, innocent life being tainted by false accusations. Tom's plight impacts each member of the Finch family, as Atticus incurs criticism and threats for representing a black man in court, and Jem and Scout are exposed to the ugly realities of Jim Crow culture as well as threatened physically by Bob Ewell.
The protagonists of The Help are primarily black maids working in white households in 1960s Mississippi. Their low socioeconomic statuses point to a history of slavery and Jim Crow laws preventing African Americans from accumulating wealth or social status. Minny Jackson is subject to disrespect by her employer, is fired from her maid position for using a white person's bathroom, and is unfairly labelled a thief by gossip Hilly Holbrook, which makes finding another job almost impossible. Aibileen Clark spends most of her adult life raising babies for white women, whose children respect and love her as a caregiver at a young age and then, later in life, adopt the racist views and lifestyles of their parents. Maids run errands for their employers in high-quality, whites-only grocery stores, yet they must shop on the other side of town, where produce is less desirable, for their own groceries. The contrast between the ritzy, spacious white side of town and the cramped neighborhoods designated for black families further highlights social injustice.