What is the difference between creating wealth and having "good effects on the world"? Wealth is what people want, and people want good effects on the world, presumably.
While we're on the subject: one thing has always bothered me about that definition of wealth. What if you make people want what you're selling? According to your definition, if politicians brainwash two nations into going to war, they're creating wealth. That doesn't seem right.
For the theses of your essays this doesn't matter, of course, but it's still interesting.