One reason for the emphasis on personal guidance is that SGI members do not have a valid Gohonzon. Another reason is that they have an incorrect faith. Therefore, they have no way to tap into the guidance and encouragement of the Original Buddha Shakyamuni, Nichiren Daishonin, and the Law. Another reason is for SGI to create uniformity in thinking and behavior. Still another reason is that the SGI needs to reinforce the SGI way since not ALL their teachings are found in the authenticated writings let alone the Lotus Sutra and Five Major Writings of Nichiren. Lastly, it is the honey for the unpaid senior leader bees to feel important [power] since they aren't paid for their hard work.