I've had too many years of upper middle class private education

There are days when I don't think of my future in terms of how much money I will make or people I'll meet or fun adventures I'll have, but by how many people I could help.  I don't want to be a PR jerk who spends their life convincing people that the lies that corporations spin are true. However I also don't want to be an artist who is blind to the world around them.  

I often think, like most people my age do, how I could change the world. How, if I just spent my life volunteering and being selflessly angelic, the world would be a better place.  But alas, good deeds don't pay the bills and that whole good karma thing doesn't make me a better photographer, plus I am no nun.  Thus, how can we really help the world around us while still taking part in the business world?  I've just spent the last 19 years at private episcopal/catholic schools and I really wish they had gone further than the whole volunteer and be a good person bit.  

I guess it's good that I am young and get a little bit of a pass for taking on odd jobs so that I can try to fight the world's problems one volunteer shift at a time, while also going out too late and spending too much money.  Also, I guess it's good that these are my only problems.  I am sure when I am 30 something and married with kids that saving the world won't involve feeding the homeless but rather making sure my kids grow up to carry on my superwoman ideals for me.  Geez, I hope that my poor hypothetical children don't grow up to be Fox and Friends Republicans. Their grandmother would kill them!