Question is, have you travelled?
I hate to sound cliché but international travels can really give you some perspective, especially if you get off the beaten path a bit. My post undergrad traveling I split time between the typical Europe deal and the near/middle east. Nothing has influenced my thinking on people, politics, religion, history, culture, and current events like spending a couple of months in the middle east. I recently returned from a month in Kenya doing some medical missions and children's center work, also incredibly formational in some of my views and thinking. Far east asia is next on the hit list.
Some people have nice things, drive nice cars, buy nice clothes, eat at nice restaurants, have large apartments, etc. My wife and I prefer to spend our money on traveling. It's certainly not for everyone, but I think everyone should at least try it.
I don't regret a single dime I've ever spent getting to the other side of the world. The tricks are: do your homework before you go, don't look for things to do/eat/see/listen to that are familiar, budget wisely, journal/take lots of pictures, and only travel with people you love. (Hemingway)