You allow your ego to run rampant, you surrender to it as a safety mechanism to cover your insecurity. Deep down you may not feel good enough, you’re not confident, so you create a mask. Your ego projects how great you think you are, which may not be reality.
The ego is in charge of mediating immediate impulses and desires, much like a squawker, with responsive actions which it thinks are socially acceptable.
Usually, those with excessive runaway egos won’t back up what they claim, as they rarely take action …