Now that John Mackey's book, Conscious Capitalism: Liberating the Heroic Spirit of Business, is a best-seller, more of the world is talking about doing good while doing business. Nowhere was that more true than at the South by Southwest Interactive festival over the weekend in Austin, Texas.

Mackey helps lead organic grocer Whole Foods Market (NASDAQ:WFM), and he does he so with a purpose: Give the world healthier dietary choices. In preaching conscious capitalism, Mackey argues that free-market capitalism can and should be a vehicle for achieving higher purposes.

All of which sounds great, of course. But does doing good in this way lead to larger profits? How can we know? The Motley Fool's Alison Southwick asks Tim Beyers of Motley Fool Rule Breakers and Motley Fool Supernova for his perspective in the following video. Please watch, and then leave a comment to let us know what you think.