In Lord of The Flies, what does William Golding teach us about power and its abuse?

Without power one cannot abuse.  This is an obvious lesson
brought forth in William Golding's Lord of the Flies.   In this
story, both of the leaders, Jack and Ralph, are able to abuse other boys on the island.
Jack is able to abuse all of the choir boys because of the power Ralph gives him.  At
the same time, Ralph is able to abuse the boys, mainly his constant mistreatment of
Piggy, throughout the book.  However, Golding shows over and over again that power is
most often taken to the extreme.  Jack uses his power to create savages on the island,
leading to the death of two innocent boys.  Power, in the wrong hands, can only be
abusive.  Golding teaches that power must be placed in the right hands, and there must
be a checks and balances to prevent abuse.  Piggy was the balance for Raph,
unfortanately, Jack did not have anyone to balance his power.  Power was all he wanted,
and because of that, the island became a place of evil.