I'll ignore the question of IQ as it relates to its relevance to anything. Humans suffer from a phenomenon called cognitive dissonance. It means that if facts

I'll ignore the question of IQ as it relates to its relevance to anything. Humans suffer from a phenomenon called cognitive dissonance. It means that if facts contradict what they believe to be true, they will invent reasons why the facts do not matter. In this case, people would claim that IQ is irrelevant, or a tool of elitists, or in violation of God's will, or whatever. Read The Psychology of Persuasion by Cialdini for some interesting material on this (all backed up by solid studies).