Oh, I know that Minato left the task of saving the world to Naruto and all, which would make him a hero, but the way wiki stated it he wanted him to be seen as a hero for being a jinchuuruki, containing the kyuubi.That too. It was Minato's wish that his son would one day(in the future) be seen as a Hero.
And Hiruzen made that rule to protect Naruto.
Edited by Hiraishin, 22 August 2014 - 09:27 PM.