This lecture delves into the ethical considerations in engineering, focusing on Kantian ethics and the concept of the good. It explores the principles of sovereignty, implementation, and correction in ethical decision-making, emphasizing the importance of beneficiaries and property rights. The discussion extends to the ethics of virtues, contrasting deontological and consequentialist perspectives. The lecture highlights the significance of virtues in shaping moral subjects and emphasizes the transformation of individuals into virtuous beings. It also addresses the notion of the common good and the ethical implications of individual actions on collective well-being. Through a detailed analysis of the 'dieselgate' scandal, the lecture examines the ethical dimensions of decision-making, emphasizing the importance of considering the impacts on all stakeholders.