This article discusses the negative impact of unethical donations on museums and galleries, including the decrease in profitability and reputation. It explores the role of ethics in organizations and provides recommendations for effective regulations. The case study of the Sackler family's unethical donation is analyzed, highlighting the consequences on the tourism industry and public perception. The perspective of patients affected by the company's addictive painkillers is also discussed. Overall, the article emphasizes the importance of ethical practices and regulations in the acceptance of donations by public organizations.