Virtues
Virtues are minor positive modifiers granted on a player for 3 hours following being targeted with an Aid Action. The modifiers are usually +1% or +2% on attacks or defences for a random Action type. For example, you may get +1% on all Bribe attacks.
Virtues are essentially the opposite of the Faults bestowed by Sabotage Actions.
Given the fact that the modifiers are small, completely random and short-lasting (although some Talents may slightly increase the duration above 3 hours), Aid is not considered to be a particularly useful as a friendly Action type.