What was Malcolm's ultimate life goal in Macbeth?

Malcolm's ultimate goal is to become king and rid Scotland
of the tyrant that Macbeth has become. Malcolm is a kind, benevolent man. He will
ultimately restore order and righteous behavior as coming from the throne of Scotland.

Malcolm desires to help others. He is a caring man. He
only flees temporarily in order to not be killed as his father was. With Macbeth as
king, tyranny is the outcome. Macbeth is in a murdering
frenzy.

In the meantime, Malcolm is building forces
to overtake Macbeth. After learning the Macbeth his murdered his beloved
family, Macduffjoins Malcolm in a plan to take back the kingdom. The plan works and
Macbeth is beheaded by Macduff. Malcolm is restored to the throne and becomes a king
with benevolent motives. Macduff comes to Malcolm with Macbeth's head. Tyranny is
over:

MACDUFF

Hail, king! for so thou art: behold, where stands 
The
usurper's cursed head: the time is free: 
I see thee compass'd with thy
kingdom's pearl,
That speak my salutation in their minds; 
Whose
voices I desire aloud with mine: 
Hail, King of
Scotland! 

ALL 

Hail, King of
Scotland! 

Flourish 

MALCOLM 

We
shall not spend a large expense of time 
Before we reckon with your several
loves, 
And make us even with you. My thanes and
kinsmen, 
Henceforth be earls, the first that ever Scotland 
In such
an honour named. What's more to do, 
Which would be planted newly with the
time, 
As calling home our exiled friends abroad 
That fled the
snares of watchful tyranny; 
Producing forth the cruel ministers 
Of
this dead butcher and his fiend-like queen, 
Who, as 'tis thought, by self and
violent hands
Took off her life; this, and what needful else 
That
calls upon us, by the grace of Grace, 
We will perform in measure, time and
place: 
So, thanks to all at once and to each one, 
Whom we invite
to see us crown'd at Scone.