Mankind desires greatness.  This has been the case since the Fall.  As Satan said, "God knows that in the day you eat of it your eyes will be opened, and you will be like God" (Genesis 3:4).  This interesting message will enlighten you to the fact that a hierarchy is not bad, but that mankind equates their worth with their position on a hierarchy.  Jesus teaches us about the hierarchy of Heaven, where the chief means of greatness is very backwards to the hierarchies of humanity.