If widgets had no guidance we would still have personalities as everyone has a dominant widget or two or more. Some people would be observers, others emotional, thinkers, and doers but there would be little coordination between people for the good of all. We may get war lords, criminals, and we all would have to obey the few or go to our lower natures to survive. It may look something like war at its worst.
When we have both the hero and the Dragon working together most all bases are covered. To make this possible the brain has a fuse box that turns off the fear so we can rush in a hot fire to save a loved one. In drastic cases where a person's life is threatened love also may turn off so the person can hurt others in their pursuance of safety. If they stay off, which happens in prolonged cases of abuse, impulsive actions result from the frazzled nerves and we have a psychopath. If the psychopath turns off responsible reasoning and begins to hurt others for selfish, dragon and crew, reasons we have a sociopath.