The Doctors companions aren ' t all human though . He ' s also had Time Lords , robot dogs , people that might be humans but quite as easily might not be they ' re from an alien world , it ' s ambiguous whether they ' re human , or , like the thals , they just look human even though they ' re aliens . As for why the Lord of the Rings one , the elves don ' t lead the charge because they ' re a dying race . They had most of the really big parts for the entire first age , and for most of the second age they were top dogs too . They only start to lose their dominance near the end of the second age when the Numenoreans come back to Middle Earth and the big elven kingdoms get smashed . It ' s only in the third age , when the strength of the elves is almost completely expended , that they cede the narrative limelight . Dwarves wise , the entire prequel to the Lord of the Rings . is almost all dwarves . If you look at it in impactful character wise , you have a wizardangel , a hobbit , 14 dwarves including Dain , an elf the elfking , a shapeshifting bearman who is only kinda human , and two men one of whom is a bad guy and the other is a good guy . Oh , and the dragon of course . Humans are totally sidelined for most of the book . It seems like you chose really awful examples to prove your point