The alpha's are the danger moreso than Elon but Elon is the one nudging them.
Elons voice and body language and overall nerdiness make him non threatening -- but one should never assume that something or someone is safe
It's a defense mechanism that seems natural to the nerd species
People let their guard down when they feel there is no immediate danger
Nerds aren't generally known for their quickness, agility, strength or fierce dominant presence.... they have to rely on psychological tactics.