The provided content discusses the ethics of implementing driverless trucks in Australia, which has implications for job losses among truck drivers and their families. The case study draws on four ethical theories: virtue theory, contract theory, utilitarianism, and deontology. Virtue theory emphasizes individual character and Eudaimonism, while contract theory focuses on moral and political obligations. Utilitarianism prioritizes the greatest good for the most people, and deontology is based on duties and principles.