Nepotism, though of widespread occurrence, is formally considered to be an offence against common morality.
While considered alien, powerful, and dangerous, he is not evil so much as neutral to the common morality of mankind, living only for the Hunt.
In the same way, the common morality is generally missing from today's homosexual writing.
The reasoning is immoral, but the characters claim special privileges above and beyond common morality.
This assumes that common morality does not have a prohibition on deceit in such situations.
The perception of common morality is enforced entirely by the circumstances of male-dominated society.
That said, nods were given in the direction of the church, to the effect of protecting common morality.
Under such stress, he will lose all sense of restraint, common morality, and go for the jugular.
And he knew nothing of common Christian morality.
The natural universe in which he stood was fierce, unstoppable, and it lacked the common morality of the Imperium.