Yeah, some of the bandwagonny replies I'm seeing in this thread do not make their posters sound like someone you'd want to spend your working life sat next to.

You don't have to show interest in the company to help the CEO get richer, but you should probably show an interest in the company because it's where you're going to be spending 1/3rd of your entire waking hours from now on, and you're going to have a fucking miserable time of it if you've already decided to mentally check out before you've even got to the interview. Have some self-respect.