At the beginning of the story Ralph and is the leader. He has a lot of confidence and although he and Jack don't see eye to eye, they respect each other
Towards the middle the group is becoming more savage. All Jack wants to do is hunt and Ralph is becoming less powerful because the conch is also losing power.
Now, Jack has gone off on his own, only Piggy, Ralph and the twins remain at the old camp. Ralph has lost all of his confidence as a leader and both he and Piggy became like a savage at the feast at Jacks new tribe.