virtue

This word carries a strong association with moral excellence and a disciplined adherence to a code of ethics. It suggests a cultivated strength of character rather than an accidental good trait, often implying that the quality has been developed through practice or spiritual guidance.

In a practical or technical sense, it describes the inherent advantage or efficacy of a tool or method. While a person possesses a virtue as a moral trait, a machine or a plan has a virtue as a functional benefit, shifting the focus from morality to utility.