Gattaca was a great movie.
How we live, what we say, what we do and don't do, all create an impression on those around us. It may even shape their behavior. There is a difference between living your life unapologetic in its moral impact on others and deliberately acting in a manner to shape society. In the first, the focus is on self, and the impact to others is a byproduct. In the second, the impact to others is the entire point, and there is no focus on self at all.