Because when he returns, Richard, he would be the biggest man in town. He wants revenge on his childhood. He wants the respect of the town. Saint Paul tells us that when we were children we spoke as children, we understood and thought as children but when we become men we put away childish things, but I'm not so sure we ever do put them away. I think the childish things linger on, and your brother craves what he wanted as a child, the respect of his home town