I just saw a blog by xaioque have to give props. Under the teachings of the senju, Orochimaru(3rd hokage), Nagato(Jiraiya), Obito(4th hokage) and Sasuke(Kakashi) have been produced. Now if the senju were so ideal and worthy of being kages why has it become a generational thing that not only criminals but world class criminals have been produced by heirs of senju teaching. Like xaioque said, you can't control the actions of people but if the senju's teaching was so great why have people who have been under their teaching become among the most notorious criminals in the world.
I also think that the Naruto-verse
characters chose their path like we do which is
called free will....both the good and bad have
suffered losses and damages...but whoever chooses
to bear the burden can manage to walk the straight
line... n i think that the whole concept of this
particular series is to show that one can survive
only by having the guts to bear the burden....