Arthur Miller is the notable playwright recognized for his deep exploration of social inequality in his works. His plays, such as "Death of a Salesman" and "The Crucible," critically analyze the American Dream, societal pressures, and moral dilemmas faced by individuals. Miller’s ability to weave complex characters and poignant narratives fosters a deeper understanding of the societal structures that lead to inequality. His contributions not only shaped American theater but also invited audiences to reflect on the ethical implications of their choices within a broader social context.