I believe the world can be a better place. In Judaism it's called Tikkun Olam, healing the world. We believe that by doing what G-d told us in the Torah, the world will run the way it's supposed to. No Strife.
I try to do my part. I want to raise Mentchedick kids (good human beings). I make sure not only I give charity every day, but also my daughter and husband. We have people over for meals, and put them up for the night if they need a place to be for Shabbat. I know we've had hundreds in our home for a meal in the last 3.5 years (since we were married).
But more than that, I try to be polite in a less-than-polite culture (Israelis are rude!). Sometimes it means I wait longer, get ignored, or get pushed in a crowd, but I think that's OK. I also never answer back with sarcastic remarks when we are in a non-Jewish area of the USA and I'm getting asked for the thousandth time if I'm Amish, if I have cancer (I cover my hair with a scarf), if we're Jewish, if I can speak Jewish (Hebrew or Yiddish?) to them, bless their kids, whatever. Because I know these questions are other people's way of trying to understand me and also make the world a better place. And I appreciate that.