Which duty outweighs loyalty to a client according to legal ethics?

The duty that outweighs loyalty to a client, according to legal ethics, is the duty to act with fairness to the adversary. This principle is rooted in the legal profession's commitment to the integrity of the legal system as a whole. While loyalty to a client is a fundamental obligation for attorneys, this duty does not permit a lawyer to engage in unethical or dishonest practices against opposing parties.

Acting with fairness to adversaries supports the foundation of legal ethics, promoting an environment where justice can be achieved. It requires lawyers to navigate their representation with respect for the rules of procedure and substantive law, ensuring that their conduct does not unfairly disadvantage opponents. This duty reinforces the notion that lawyers are officers of the court, serving not only their clients but also the interests of justice.

Maintaining fairness promotes trust in the legal system, and unethical conduct can ultimately harm not just the specific case at hand, but the reputation and efficacy of the entire legal profession. Therefore, while a lawyer must zealously represent their client, such representation should never come at the cost of fairness to others involved in the legal process.