The world's greatest 20th century innovators, such as Einstein and Shannon, did not do their work to get rich. It's more than a little crazy that "innovation" has become so closely associated with ECommerce entrepreneurship, and is assumed to be driven by greed.
My outlook has almost nothing to do with being paid, but rather having the proper rewards for taking a proper risk. For someone like Musk, the reward from PayPal enables him to pursue even greater innovation, which he is doing marvelously. I would bet a large sum that he would not be where he is now if his gains were capped at 100x poverty level.
