One of the coolest and most subtle instances I've seen of kids' media promoting anti-authority mentality was an old Dandy comic I had as a kid where they hid a joke in a contest's terms and conditions small print and said "see, always read the small print!". At the time I read it as just a dumb gag - which it is - but now I'm older I really appreciate that kind of message to know what you're getting into and pay attention to tiny, hidden things.
