Well, of course, there are scores of education entrepreneurs, the men and women who dream up clever ways to make profits from the field of public education. They have start-ups, they have real-estate investment trusts, they create companies to build data systems, they operate for-profit charter chains, on and on. Some get very rich. They certainly make more money than teachers, who spend their days with children.

Education Next, the journal of rightwing academics and journalists here profiles three entrepreneurs.

The three edu-entrepreneurs featured here are Larry Berger of Wireless Generation, whose company was purchased by Rupert Murdoch for $390 million;

Jonathan Harber, who created Schoolnet and sold it to Pearson for $230 million.

Ron Packard of K12, who founded the company with the Milken brothers, which went public in 2007, and now has revenues of $848 million.

It is astonishing when you think about it that non-educators profit so handsomely when teachers must work for years to reach an annual salary of $50,000.

Who adds social value?

It gives one pause, makes you think about our priorities. And think of who has the great fortunes: Murdoch, Pearson, the Milkens.

I withhold further comment.