Since morality is subjective, people will disagree on what is 'right' and what isn't; but at a given time in a certain culture, the majority of people might agree that something is 'right' and something else is 'wrong'. These are called being 'politically correct' and 'politically incorrect' respectively. For example, racism is considered politically incorrect nowadays, although two hundred years ago people would have had no problem being openly racist. At the same time, hundreds of years ago it would have been politically incorrect (if not illegal) to insult the head of state, whereas nowadays in most countries people wouldn't see a problem with that.