Answer:
Deontological
Step-by-step explanation:
Deontological: In moral philosophy, the term "deontological" is also referred to as deontology, and is described as the "normative ethical theory" that signifies that the "morality" of a specific action needs to be based on whether that specific action itself is considered as wrong or right under a particular series of rules, instead of basing on the result of that action.
In the question above, the designer's approach to ethical decision-making is best characterized as deontological.