Professionalism depends on two things: professional responsibility and virtue ethics as well as moral theories including utilitarianism, duty ethics, and rights ethics. Utilitarianism focuses on producing the greatest good for the greatest number of people, while duty ethics emphasizes moral duties and obligations based on principles like honesty, fairness, and avoiding harm. Rights ethics establishes that individuals have fundamental rights to life, liberty, and property that create duties for others to respect those rights.