Surely, this is the moment when we find ourselves on the cusp between the old and the new.
The Old: There was etiquette and common courtesy, and you felt called upon to regard everyone as a very important person. Sly and the Family Stone sang it best: "Everybody Is a Star." And Jesus said: "Truly, I say to you, as you did it not to one of the least of these, you did it not to me."
The New: Everyone will have Google Glass with facial recognition and everyone, high-end or not, will know the identity of everyone, celebrity or not. Everyone will know that you know who they are, and your ability to recognize anyone will say absolutely nothing about your character and discernment.