They don't just reward. When the season is right they whack an incredulous political world with an unsolicited peace attack.
Teddy Roosevelt, Woodrow Wilson, Henry Kissinger/Le Duc Tho, Arafat, Rabin, Peres...all won the Nobel Peace Prize. All of them had blood on their hands.
I like people who don't wait for ceremony or soul salvation to reward, cajole, or outright demand peace. It's a great dream and one that at times needs to be beaten into submission.
Great job, you crazy Norwegians!