By Chapter 9 the vast majority of the boys (starting with the hunters) have abandoned Ralph and his camp and have come under Jack's leadership. Now there is no more pretence of civility, and any respect for Ralph's leadership and his preoccupation with keeping the fire burning has completely diminished.
As Ralph and Piggy in their miserable, half starved state approach the feast Jack has organized, we can sense the barbaric state Jack and his hunters have slid into,
Before the party had started a great log had been dragged into the centre of the lawn and Jack, painted and garlanded, sat there like an idol. There were piles of meat on green leaves near him, and fruit, and coco-nut shells full of drink. (p. 183)
Jack has set himself up as some sort of primitive demagogue. He is now supremely confident in becoming the undisputed leader on the island and is evidently basking in all the glory that he believes leadership should bring. Having the meat surrounding him is his way of flaunting his source of power, and he is only too happy to order his followers to give meat to Ralph and Piggy. He does this not at all from kindness but as a way of further humiliating his two 'enemies'.
The storm which occurs in Chapter 9 gives us further insight into how much Jack and his followers have changed. Rather than seek shelter Jack whips them up into a pig killing frenzy as they perform their wild dance out of a mixture of fear and wild abandonment. At the height of the storm comes the climax of the novel as Simon is killed because of the delirious state the mob has worked itself up to. There are no more traces of civility, compassion or even logic amongst Jack and his hunters (they later delude themselves into believing that they have killed the beast in a particular form); they have slid into barbarity and it would appear that Jack's model of brutal leadership will only encourage it further.