The only word for it is hubris. The overwhelming sense that your ability in one area has some magical transitive property to ability in another.
Can I write code? Sure. Im a bad designer, I can follow along in accounting, Im a terrible actor.
I would guess that there is much more to this story than just someone "bugging" a conference room. Though I would venture to guess that the keystone cops never get to the bottom of it.
Company is another.