First, you shouldn't expect such an unnecessarily verbose explanation of 'pissing money away' when anyone willing to follow the argument productively would happily understand that he didn't mean polio vaccinations aren't helpful. (http://www.overcomingbias.com/2008/06/against-disclai.html)

Secondly, he does say the same exact things you want him to. He says that most people "do good" in ways that actually "[piss] money away", explaining that we have too much of things we don't need, and saying that more good could be achieved by other means.

edit to address your first point: He directly addresses the 'correlation' of financial success to 'doing good': "When we look back on people in the past and what they did that we are thankful for, creating innovative products, processes, and organizations should come out near the top; that is mainly what made us rich." (emphasis mine)