Advertisements are pretty much messages trying to convince people to see something in a certain way. Surely North Korea has plenty of that since it is essential

Advertisements are pretty much messages trying to convince people to see something in a certain way. Surely North Korea has plenty of that since it is essentially their entire society. And the stronger the message the less substance. A lot of things advertised are either common goods like "buy this pizza instead of that one" or luxury goods like "you should pay more for this because you deserve it". Not a lot of advertisements for e.g. affordable housing or something else that could be very beneficial for society.