They published articles and books exposing social, economic, and political injustices and corruption, raising public awareness and putting pressure on government officials to take action. Their investigative journalism helped spark public outrage and demand for reform, leading to changes in policies and laws to address issues such as monopolies, child labor, unsafe working conditions, and political corruption. Overall, muckrakers were able to influence American society by shining a light on problems and advocating for positive change through their impactful storytelling and reporting.