For most of the millions of people who watch TED videos at the office, it's a middlebrow diversion and a source of factoids to use on your friends. Except TED thinks it's changing the world, like if 'This American Life' suddenly mistook itself for Doctors Without Borders.
Because TED is for, and by, unbelievably rich people, they tiptoe around questions of the justness of a society that rewards TED attendees so much for what usually amounts to a series of lucky breaks.