I have a question for you, why was education better when the relative salary of teachers was lower than it is today? The armies that fought the U.S. Civil War were the most literate armies in history (as evidenced by the many letters and journals that they wrote), yet at that time school teachers were generally paid a pittance.
So, when I first read the above, I figured you were just trolling. However, a quick google search turned up the following:
Civil War armies were the most literate in history to that time
Emphasis mine. I'll leave it as an exercise to the reader to ascertain the precise mistake made by the parent post.