I'm sorry, but I don't find that to be an instructive comparison. The money the school district spends isn't revenue from the open marketplace, it's tax dollars, which the law compels residents of the school district to give them. Your school district could be the absolute worst or the absolute best in the world, but the money they spend would be derived from the law, not from free choice of a similar caliber (it's much easier to stop doing business with the Teaching Company than to sell my house and leave the district).
On esimply can't compare legally-mandated, tax-derived expenditures to cash freely given to a private enterprise (which is their revenue). Not only that, the proper measure in both cases is outcomes per dollar spent, not total expenditures. For the business, this is return on equity. For a school district, it's educational outcomes vs. dollar inputs.
This is not to say that every company in the education sector is a great business; there are lots of so-so and outright horrible businesses in many sectors of the economy. But comparing a private enterprise to a tax-supported government entity doesn't make that point clearer.
On esimply can't compare legally-mandated, tax-derived expenditures to cash freely given to a private enterprise (which is their revenue). Not only that, the proper measure in both cases is outcomes per dollar spent, not total expenditures. For the business, this is return on equity. For a school district, it's educational outcomes vs. dollar inputs.
This is not to say that every company in the education sector is a great business; there are lots of so-so and outright horrible businesses in many sectors of the economy. But comparing a private enterprise to a tax-supported government entity doesn't make that point clearer.