infomercials

Why is it that infomercials are so stupid? Have you ever noticed that the people on these programs are complete morons? Why? Do they know that they're stupid, or are they unaware? Why are they so damned perky? Are the actors actually dumb as well, or is it just a way to pay bills? Is it possible to have self respect and do work like that? Aren't they mortified? God, I would be. They target an frightningly ignorant, trashy, altogether icky audience. It seems to me that this must be an indication of the product they sell. Eww, how tacky.