I was at a workshop where a man introduced himself like this: when I did my doctorate at Insert Ivy League University Here.
Now there’s nothing wrong with establishing credentials in particular when they are relevant to the discussion, which in this case they were not.
What he had done was to anchor the rest of the group around his primacy as an intellect, which he certainly was. Without needing to say it directly, he had sent a signal that his views were ipso facto going to be better and to disagree with him if you dared .
Many subsequently and unconsciously looked to him to lead. Those who dared speak cast glances in his direction, tacitly seeking his approval.
This is how individually and collectively we agree to defer and give away power.
People anchor others in many ways, sometimes overtly (which makes it easier to detect) but often subtly.