I didn't study the context, but what advice I can give you is this:
Don't do a generic "yes there are people who are bad but there are some people who are in between" or even worse just "yes there are people who are bad" response. That's what 90% of the submitted works on the exam will be like. You need to find a way to be individual, unique, and upbeat, and show the examiner that you know what you're doing.
Maybe discuss some revolutionary conflict in which someone in some bizarre conflict ended up being the good guy to one group or people and the bad guy to others, but in some twist the roles reversed, or something really fucked up like that. Discuss it well and try to be indie, because it gets you marks in English.
Just a caution more than anything of what not to do - I didn't study the context so I can't really recommend what TO do, but I know what would be a poor response just looking at the prompt.