Decency

Decency was the quality or state of conforming to social or moral standards of taste and propriety.

In 2267, Zefram Cochrane questioned the future – the men who have no notion of decency and morality. (TOS: "Metamorphosis")

Janet Wallace later described James T. Kirk as a "man of morality, decency, handsome, and strong." (TOS: "The Deadly Years")