Before you start production, you have characters you have created without actors in mind, then all of a sudden you've got actors. They bring an enormous amount in creating these characters, and creating the dynamics between the characters that you've written.
That's what it's about, how society changes people but people can also change society. It only takes a few people to do things and help themselves instead of sitting around on their asses. She has a very global outlook on life and all sorts of things.