Here are two examples of people who have taken powerful action as a result of what they believe. They, like me, would probably feel pretty uncomfortable being lumped in with most fundamentalist Christians, but it is safe to say they are moved by a fundamental belief that Jesus' commands to His followers are to be taken very seriously since He is the One true God.
1) I've been very inspired by George Muller who gave up any form or salary whatsoever and refused to solicit people for funds, yet somehow (miraculously?) he was able to care for 10,024 orphans before he died. He truly gave up everything we would consider worthwhile to gain so much more.

Reading George Muller's biography has really influenced the way I want to live. You can read shorter excepts about his life by just looking him up on Wikipedia or google.
2) In the case of
Tom Davis and the Red Letter Campaign, the idea seems to be taking action based on the red letters commands of Christ. I have yet to read the book, but from getting the chance to see Tom's blog I understand that this belief has given him a sense of urgency for orphan care. This sense of urgency is slightly different to me than the typical world relief worker who just wants help when it works out for them. Both are very needed and appreciated though. I just differentiate because I rarely see people just get up and go to Africa on a whim unless it is for something greater than good works.

In an age where it is more comfortable to view the Word of God as figurative compared to the traditional understanding of Scripture, the question I ask myself is if I take the word of God literally enough compared to many traditional churches who never had the balls to act upon Scripture as truth.
In case there is any question, I want to clarify that the finger I'm pointing is at myself. I've been blessed enough to obtain many physical assets in my life, and I know it's time to start putting those things to use for people who deserve them. It's a challenging yet very exciting time for me. Feel free to push me further in this direction and call me out in areas where I am weak.