When the boys first arrive on the island, they organize their lives according the social norms they learned in England. They elect a leader, use the conch to represent order as well as to give everyone a chance to speak, and delay immediate gratification to tend the fire in the hopes of being rescued.
Jack, however, has been upset since he lost out to Ralph as the leader of the group. He is the Hitler-figure in the novel, and like Hitler, he has a strong will to power. He soon realizes that there is nobody to enforce social norms on the island, so he finds ways to satisfy his lust for power. If Ralph and Piggy appeal to the rational, civilized, super-ego side of the human psyche, Jack soon comes to understand he can easily lure the boys to his side through appeals to their baser instincts.
The boys lose their innocence as they follow Jack, who encourages and even commands that they give in to their repressed, atavistic impulses—the "id" side of their personalities that civilization...
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