Self-Importance Abounds

At a lunch hosted by a vendor today, I end up sitting near someone who also happens to work for my company, someone I had never met before. We introduce ourselves and say where we work.

Self-Important Company Guy: "I'm in charge of this product!"
Colleague and myself: "Really? What group do you work for?"
(in the meantime our group handles hosting for this product for our company, one would think we would have heard of him, if he was "in charge of it")
SICG: "I work for XYZ (business group)."
Me: "Oh! Do you work with BC?"
(someone from XYZ group who I've worked with previously)
SICG: "BC works FOR me."

Our branch rep sits down at our table and introduces himself to SICG (obviously didn't know who he was either).

Branch Rep: "Which business unit are you with?"
SICG: "XYZ Group"
Branch Rep: "Oh, I know BC from that group, I've spoken with him quite a bit."
SICG: "BC works FOR me."

Alrighty then. We get it. You're extremely important being in charge of the product and managing BC and all.

Do you ever get the feeling that some people have an extremely inflated idea of their own importance? I mean, that's fine and all, but why do they always have to drag everyone else into it? Sheesh.