In this paper, we discuss the ethical responsibilities of being a role model as an engineering teacher in higher education. We draw on virtue ethics, care ethics, ethics of freedom and role modeling theory, using Grande's framework for engineering education. We argue that the three ethical theories give different views on the ethics of role modeling as a teacher. Virtue ethics implies that the teacher should behave as virtuously as possible to encourage students to emulate character traits. Care ethics implies that the ethics of role modeling is fundamentally about care practices, emphazising relationships and values such as attentiveness and responsibility. Ethics of freedom urges the teacher to grant individuals opportunities to develop and be free from the control of others. By using role modeling and ethical theory, we aim to show how theory has an impact on both teaching practices and could underpin empirical research in engineering education.