No, I am very involved in politics, social problems, and changing the world.
No, I am too busy to waste time or get involved in anything.
Yes, because getting involved is a waste of time; one person can't do anything.
Yes, because I work hard and need my relaxation time.
Yes, because I don't care about politics or social issues very much.
Yes, because the people who run things don't want change.
More than one answer above.