He is more effective at keeping the tribe together and controlling them.
Authors often show how humans select this stronger person, in order to give an understanding of the different powers that some people can posses over others.
In William Golding’s novel, Lord of the Flies Ralph though not the stronger person, demonstrates a better understanding of people which gives Ralph better leadership qualities than Jack, although he is ultimately not succesful.
“William Golding's , Ralph Lord of the Flies, Page 24 Throughout the story we see the events through Ralph’s eyes and realise at the end how they children have lost their innocence and see ? Though he started as a sensible boy who thought the best of people, he now realises that all people are flawed.
Although rescued, Ralph weeps at the end because of his realisation of evil in themselves.