It has long been a tactic of an opponent to poke fun at the opposite side. Not taking them seriously, thinking they are inferior….Throughout history this has led to different outcomes, sometimes it leads to abhorring prejudice, sometimes it leads to stereotypes that do not have place in a modern world, but sometimes…..it works. It depends on the situation and what side becomes the winning side of history. History is written by the “winners”. The doctor is no different. He constantly battles Davros and wins. It is because we view the Doctor as a winner that we are enthralled by how he minimizes his enemy to a comic form.