Dave I completely agree, unfortunately that power play even rears its head in people's personal lives I have been at social engagements from religious functions to dinners and seen people unable to remove their downward gaze. Phones sometimes fuel people's unrealistic idea of being irreplaceable.
Someone once gave me great advice, they said you will always be replaceable at work so never fool yourself into thinking otherwise. Spend your time worrying about the places and roles you have that are not replaceable, mother, daughter, friend, sibling etc. I still remember that on days when I lose focus.