Which will take over and why?

According to Golding human beings naturally gravitate towards their dark side. Golding uses children who have not been fully developed in the social contract that we all learn: that is their sense of right and wrong are still developing. When adults are not there to enforce checks and balances, most of the boys drift towards evil. Golding thinks this is human nature in its purest form. Within the context of the book and the wider world, I think he has a point.