“Which led to a second revelation about certain nonprofits, especially young-person-driven start-ups like Public Allies, and many of the bighearted, tirelessly passionate people who work in them: Unlike me, it seemed they could actually afford to be there, their virtue discreetly underwritten by privilege, whether it was that they didn’t have student loans to pay off or perhaps had an inheritance to someday look forward to and thus weren’t worried about saving for the future.”