The presence of an ethical symbol such as 'right' or 'wrong' in a proposition adds nothing to its factual content. If I say to someone 'You acted wrongly in stealing that money', I am not stating anything more than if I had simply said 'You stole that money'. In adding that this action is wrong I am not making any further statement about it. I am simply evincing moral disapproval. It is as if I had said 'You stole that money' in a tone of horror, or written it with exclamation marks after it. The tone or exclamation marks add nothing to the literal meaning of the sentence. It merely serves to show that the expression is attended by certain feelings in the speaker.