Engineering ethics and societal impact are crucial aspects of the field, guiding professionals to prioritize public safety, integrity, and fairness. Key principles include maintaining competence, avoiding conflicts of interest, and striving for excellence in all work. Historical case studies like the Challenger disaster and Deepwater Horizon oil spill highlight the importance of ethical decision-making. Engineers must consider environmental impacts, social consequences, and emerging challenges while using structured frameworks to navigate complex ethical dilemmas.