identify a case/instance in which a business person has acted in a way that is legally wrong, but ethically right.

john, who was a broker at AP investment, used to avoid under performing and unsuitable products for clients acting in their interests. He was being pushed to sell AP investment's products than act in client's interest. He reported the issue to his supervisors and colleagues, that was illegal as per firm's legal requirements but at the same time it was ethical to act in the best interest of his clients.

Explanation:

An ethical obligation is a requirement to act in accordance with, or to refrain from violating, a recognized standard of right and wrong, whether set out in a professional, or a personal, code of ethics. Some ethical obligations for professional persons, including lawyers and doctors, may also be codified into law.

Legal obligations derive from the law, a system of rules which is applicable to the whole of a particular society, and is enforced through its institutions. The law seeks to facilitate relations between members of society by clarifying their rights and responsibilities, balancing their interests, and regulating the behavior of individuals and groups in accordance with that balance