In addition to what @The Ineffable said I think the conscious attitude is that it's not worth using, but that people deny the relevance of their ignoring function to their detriment. In situations where the base is heavily affected, it unconsciously "braces" itself to receive more information and becomes increasingly aggressive about getting it, over-responding to whatever is received. Thus people become "slaves" to their ignoring function, at least until they begin consciously using it and no longer letting it 'run on automatic'.