You (The US) already spends the most on education per student then any other nation and yet have some of the worst test results.
That may be true, but it's not going to teachers!. (Link describes North Carolina, but I think the same is true elsewhere.)
I don't think "throwing money at it" will make it better. Sure, teachers will take home more money but the test results clearly show this doesnt improve the quality of education.
This study disagrees.