In a way, it is the whole concept of making service to self the same as service to others, but with two different energy levels. One starts off making onself happy and then using that happiness as motivation to feel even better. The other uses service to feel better about oneself, serving others and learning about fulfillment and accepting the fact that giving to others comes back tenfold (or so I've heard).
It is a gigantic commitment to polarize, but it looks like it will be worth it. When you center your life around either giving or receiving, it makes it easier to retain that motivation Steve talks about. Every action you take, you ask yourself, "Is this going to help me serve/aquire better?" This all depends on which way you polarize. I believe that polarizing will give you a tremendous strength towards hitting that peak motivation, so I may give it a try. All in the name of service, properly compensated of course.
I completely agree that serving from a position of abundance is optimal. It just gives you more resources to serve with. You've heard the story of the guy who says, "I'd give you the shirt off my back," but he does not even own a shirt. The thing I love about Steve's site is he found a way to make a decent living giving away things for free. That is exactly what the lightworkers need to do. Find a way to make giving sustainable and experience abundance to draw upon to continue the cycle of contribution.