Professing Themselves to be Wise

Why is it that those who have never studied a topic, and yet are confident they know everything they need to and have no need to learn anything, seem to be the most likely to quote Paul’s words in Romans 1:22, “Professing themselves to be wise, they became fools,” and do so thinking it applies to the person they are talking to and not to themselves? It is such a sad irony, when people manage to plunder the Bible for projectiles to hurl at others, but seem to miss that the very words they cast about would teach them to be humble and to seek to learn, if only they would listen to them, instead of assuming that they only apply to others.