Even though they are much stronger, having more thought put into them, the others rebuke what is said after realizing that it has come from Piggy, the most detested boy on the island. The above quote is stated by Jack, the future chief, as he is one of the stronger ones in the group. By having said this, Jack now realizes the weakness of his old leader, Ralph, and can elaborate on what is being done. Jack's statement somehow stays inside the minds of the boys, and from this, Ralph looses most of his power.
Jack on the other hand is at a point to only gain members into his newly formed group. By being the only big kid on the island that does not listen to Piggy, his power grows. The others joining the group do not realize what they are getting into because there is no other big person to oppose Jack in the group. This gives them the illusion that Jack is never wrong and can handle the role on being a "sole-leader".
Quickly the others realize that Jacks group only hunts and has fun. This attracts almost all the others that have not yet joined the hunting tribe, leaving only a few to manage survival on Ralph's side. As more boys enter the tribe, Jack's power seems to increase. Whatever belief enters his mind, the others will follow and obey with no question. Eventually this goes too far, as Simon is killed being mistaken for a beast. Although already one death has occurred, the others do not seem to realize what has happened, and continue to give their new chief power. Jack's tribe then kills Piggy, and goes on a rampage, as Jack "brainwashes" the others into believing that Ralph's customs were boring and wrong. This is what sets all the others out to kill Ralph at the end.
As one can see from the start, Jack's tribe changes their lifestyles to a primitive state, while Ralph's seeks the future in life. Ralph thus thinks on a more matured level by learning from past mistakes, while Jack only seeks the fun out of life.