Morality is how things are; the choices we make based on our belief of what is right and wrong.
So if we stop using our intelligence to consider the big picture (philosophy), we settle for how things are (what everyone else is doing). We take surveys of how others are behaving and decide if 55% of others are acting in a certain way or believe a certain thing even though our conscience nags us it is wrong, then we assuage our guilt; we are not alone in those same actions or beliefs and settle for the majority opinion.
