Who Makes Progress: Entrepreneurs or Bureaucrats?

Professor Mark Perry has this important quote from Thomas Sowell:

"It was Thomas Edison who brought us electricity, not the Sierra Club. It was the Wright brothers who got us off the ground, not the Federal Aviation Administration. It was Henry Ford who ended the isolation of millions of Americans by making the automobile affordable, not Ralph Nader.

Those who have helped the poor the most have not been those who have gone around loudly expressing "compassion" for the poor, but those who found ways to make industry more productive and distribution more efficient, so that the poor of today can afford things that the affluent of yesterday could only dream about."

Who's doing more to promote education? The free, but private, Khan Academy or the Detroit Public School system?