Sharing knowledge online with a committed group of individuals is one of the best ways to "make a difference" in the virtual realm and in the real world as well. When others take that information and put it into action, it becomes knowledge. As such it empowers the user of that knowledge to enhance their quality of life. The bottom line is that managing knowledge is about worker smarter. That enables the user to work efficiently, confidently and profitably.
Now who wouldn't want this?