Engineering shapes daily life and creates public responsibilities. Role-based ethics guide engineers to protect public safety, health and welfare.
Early in an engineering ethics course, students can be asked to look around a classroom and identify something that has not been engineered.
As they scan the ceiling, floor, walls and objects in the room, they often find little that qualifies. Someone may answer “us,” referring to the people in the room. That response can lead to a discussion of how humans have used designed tools and interventions over time, including medical procedures, prosthetics, dentures and eyeglasses. These are engineered objects, whether simple or complex.
The main point is straightforward: much of daily life depends on engineered systems. Housing, transportation, clothing, food, entertainment and communication are shaped by engineering work.
This matters because engineering affects how people live and work. People rely on engineered products and systems every day, often without noticing them.
Because of that reliance, engineers have responsibilities to the public. They are expected to design, build and maintain products and systems that work as intended, meet safety requirements and reduce the risk of preventable failures that could cause injury or death.
A closer look at this obligation shows that it reflects a moral view about duties to other people.
For example, most people accept basic duties toward children who are not their own. These include not harming them or putting them at risk and helping when a child clearly needs assistance.
Becoming a parent adds duties that others do not have. Parents are responsible for a child’s care, housing, food, emotional support and education. This illustrates how roles can create specific responsibilities. The same idea applies to engineers, whose work can affect the public and creates professional responsibilities tied to that role.
This is why the first fundamental canon of the National Society of Professional Engineers (NSPE) code of ethics says engineers must “hold paramount the safety, health, and welfare of the public.”
People may disagree about what this means requires in practice, including what counts as the public good and how far engineers should go to apply the principle. These disagreements are common in ethics because ethical duties often involve judgment and tradeoffs.
This Control Engineering article originally appeared on another WTWH Media publication, Design World on November 11, 2025.
Edited by Puja Mitra, WTWH Media, for Control Engineering
