I don't agree with his premise that self-interest is equivalent to self-centeredness and greed. It's similar to the mistake I believe some people make in equating assertive with aggressive.

"However, these shifts clash with a long-prevailing ideology, that the primary pursuit of self-interest best serves the public interest and personal success. That ideology has also prevailed in our views of adult psychological health and maturity. In essence, this ideology makes the pursuit of greed, self-centeredness and materialism the holy trinity of public and private conduct. And it's generating a growing 'social psychosis'."

From: http://www.psychologytoday.com/blog/...he-common-good