The Theme of "Lord of the Flies"

"Lord of the Flies", a piece of classic literature by William Golding about a bunch of boys that are abandoned on an uninhabited island and slowly dessert all hope of being rescued as they descend into savagery. The book expresses the theme of civilization versus wilderness very clearly throughout.

One way this is expressed throughout the book is that the children eventually form sides. One side with an elected leader,  builds shelters and makes sure to try and signal passing boats. The other side has a self-declared leader and takes prisoners of the other side that are then killed and tortured. This shows how simply these sides are portrayed.

A quote that supports the theme of wilderness versus civilization is when they are finally rescued. An officer says "-you're all British aren't you-would have been able to put up a better show than that". This proves that this conflict is present in all cultures even societies seen as being advanced.

Even though it is clear to me that the theme of this book is the conflict between society and wilderness, I am not sure exactly which side "won"in the mind of the author. The more savage children kill almost all of the other children, but they are rescued and taken back to society. In the end, it isn't clear to me which side side is superior.