In Hansberry's A Raisin in the Sun, there are multiple examples of characters fighting for values and ideals that are significant. One such example is the conflict that arises between Beneatha and her suitor, George. Beneatha wants to connect to her African heritage. George, without even seeming to realize his words' impact, tells her, "Don't be so proud of yourself, Bennie—just because you look eccentric" (act 2, scene 1). She questions, "How can something that's natural be eccentric?" and George stumbles over his reply, telling her to get dressed. This source of conflict continues into the next scene, when Beneatha tries to get George to engage in meaningful conversation with her, and he tells her that he wants "a nice—simple . . . girl . . . not a poet" (act 2, scene 2). Beneatha finally has enough, realizing that George is content to accept the status quo of the (white) world around him without question. She is not and decides to part ways, choosing her values over their relationship.
In history, an example of people who fought for their ideals are the resistance fighters during WWII in Europe. There were many people risking their lives to help Jews and other persecuted people hide and even escape to regions of safety. Some of these resistance fighters were imprisoned and even killed, but they held true to their values of recognizing the value of all human life and fought to make a difference.