What three characteristics do Jack Merridew (Lord of the Flies) and Macbeth (from the play) have in common?

Jack Merridew from Golding's Lord of the Flies
and Macbeth from Shakespeare's The Tragedy of Macbeth
are similar in that they allow their need for power and control to override
their good judgement.  Jack does not agree with Ralph's leadership, and instead of
trying to use the forum of discussion through the conch to solve his conflict with
Ralph, Jack decides to break away from the greater group of boys to do things his way. 
As more and more boys leave Ralph to follow Jack, Jack becomes increasingly greedy for
power and control.  The boys must obey his every command or suffer severe consequences. 
Similarly, Macbeth's intense desire for power and control motivate him to murder Duncan
to take the throne.  Once king, Macbeth uses his power to manipulate members of the
kingdom and to threaten people to do evil deeds on his behalf.  Macbeth cannot get
people to follow him in the way the Duncan was able to do, so he tries to force people
to be loyal to him by using fear.  In these ways, Jack and Macbeth are
similar.