Emily Spence: Years ago, the founder of central Massachusetts’ food bank told me of the obscenely high salaries that the directors of a major, well-known Massachusetts charity providing funds for hungry Americans received every year, an amount that was purposefully not readily made public. The reason is that all of the volunteers for this charity, that raises millions of dollars each year, would be greatly dismayed that around a fourth of them were, actually, working to enrich upper management.