Good luck-- I share your view that coming up with better ways of playing zero-sum games is not the way to make the world a better place.
A lot of us share that view. Bitcoin, for unfortunate reasons, has attracted a good number of people who seem to believe that trading is a good way for people to "make money".
It doesn't make the world a better place. Not on Wall Street, not in Bitcoin. I'm somewhat surprised Zhou shared that view, and very pleasantly surprised that you do Gavin.
Zhou - I'm sure you'll go on to create awesome. Good luck!