How does the play Macbeth reflect the social anxieties of the time?

Since Shakepeare's plays were under the patronage of
the English monarchy, he was well aware that political repercussions could gravely
affect his prosperity. In fact, King James named Shakespeare's company of actors the
King's Men. With this financial support and political connection, with James I of
Scotland on the throne of England, Shakepeare wrote what would be known as the cursed
Scottish play since James VI was also king of Scotland; his mother had been Mary Queen
of Scots, a cousin of Elizabeth I.  Additionally, since the ancestors of James I could
be traced back to Banquo, Shakespeare wrote the role of Banquo kindly as a man of
integrity who is fair in his dealings.  Whereas some of his previous plays contained
pejorative language regarding Scotland, Shakespeare wrote Macbeth with a motif of
commonality between the two countries. Malcolm's role, too, was altered for King James;
he was recorded in history as not a friend of England, but at the end of the play, he is
shown as a friend of the English.

Another element of the
play that is politically correct is that of the preternatural world.  For the
Elizabethans, the other world had a tremendous role in their lives. What Shakespeare
does in his play is to take the "goddesses of Scottish destiny" that he had read about
in Holinshed and altered them into bearded hags, in keeping with the interest of the
principal person for whom he was writing the play, King James, as well as for his
Elizabethan audience.