We don’t allow the authority and accuracy of our opinions of what is right and wrong to be questioned by others, but we still find it necessary to strenuously explain and justify it.
Bad things are often labelled as such on moral or ethical grounds, for instance. We do so because it is an easy and more impressive way (depending on what you consider those moral or ethical grounds to be) to justify our opinion. This is the “It’s just wrong” argument. It is also true that we often call on a higher power to lend weight and substance to what is still essentially a personal opinion so that we ourselves can step back into the shadows. We can then appear impartial and objective. We know this is a convenient deceit, because we may choose in certain instances to place ourselves in opposition to such an authority if our beliefs differ. Although the great majority may concur that an agreed upon position is a right one, it doesn’t mean that is the morally correct one, and we will still oppose it if we ourselves think it is wrong.
It’s not that it’s “wrong” in any case; it’s just that we don’t agree with it. Each event, then, is labelled as being either Good or Bad by referral to our assessment of it being either Right or Wrong, with the assertion being that we therefore Agree or Disagree.