Two wrongs make a right. Robbing Peter to pay Paul. justifiable homicide. The ox is in the mire. The greater good. The worth of the many out-weighs the worth of a few. Charitable Larceny. Aiding and abetting
a kindred soul
it is called mondegreen.
the person is called a chaufer
To pervert something is to change it or corrupt it from being what was intended. A pervert on the other hand is a person that has unacceptable sexual behaviors.
They'd be called that person's relative.
A person who misuses their authority can be referred to as authoritarian, abusive, or corrupt, depending on the context of the misuse.
An exile, or an outcast ( not to be confused with outcaste, which means something else). Banished would be another word.
A person who says one thing and does another is called 'hypocritical'.
If written by that person, it's called an autobiography. If written by another person, another author, it's called a biography.
The person who speaks for another is called a spokesperson or a representative. They convey the thoughts, beliefs, or actions of the person or group they are representing.
Prejudice, discrimination, judging?
Person under control of another is a puppet