Power Rangers is rated under the TV-Y7-FV standards. In short, many things from the source material are toned down and even potentially cooler villains (like Ransik) tend to become Large Ham, American style. However, there are moments when Power Rangers manages to create some villains that can be downright disturbing or cruel to the heroes. One real nightmare fuel is Viktor Adler as the Second Master Org. Power Rangers Wild Force is one such season. I've had my complaints on Power Rangers including the number of episodes. Wild Force only had 40 and I felt "Forever Red" was a weak spot in the series. However, I still feel the Second Master Org proved himself much worse than the Greater Scope Villain. Jindrax and Toxica discover that the real Master Org was long gone. Both Orgs learn that they were serving a HUMAN. Jindrax and Toxica had redeeming traits compared to their Wild Force counterparts. I find their redemption another plus that Wild Force has over Himitsu Sentai
Presenting my views of other various franchises in the Fantasy Universe.