In Lord of the Flies, there are no clear "good guys" or "bad guys" on the island. All of the boys have their own flaws and make mistakes throughout the course of the novel.
For example, Ralph is initially portrayed as a strong and fair leader, but he also has moments of selfishness and indecisiveness. Similarly, Jack starts off as a leader of the choir, but eventually becomes power-hungry and violent.
Throughout the novel, the boys' actions and decisions are influenced by the deteriorating conditions on the island and their own primal desires. The concept of good and bad becomes subjective and fluid, as the boys' morals and values shift in response to their circumstances.
Overall, the novel suggests that good and bad are not fixed categories, but rather depend on the context and individual motivations of the characters.