Of course the difference is the Rush soundbites are picked by his opponents to make him look bad, the Jon and Kate commercials are picked by the network to make them look good. And really their fans, like you, say stuff that supports every impression I get from the commercials. You’ve admitted in this thread that she bullies and guilts him into things like last night’s “confession” episode and quitting his job.
If what you just said were true, you would not be judging them so harshly. You judge them ONLY by the commercials you have seen. And the way you judge them, obviously the commercials you've watched DOES NOT make them look good.