Rant On
I don't necessarily agree that it is wholly a case of follow the money. Are they the best wages out there? No, but they are far from the worst and in most cases the benefits are well above local averages. You don’t have to be the sharpest tool to teach well if you teach the basic material. If you are not sharp enough to understand the material then you should never have received your teaching certificate.
I see it more as accepted subpar performance because of the power of the teachers unions and active social engineering. These teachers are very good at teaching the “agenda”, they suck at teaching anything else. Then you get the unions and education groups that drive curriculums based on “studies” and “teaching theories from Berkley”. Case in point for the later, when my middle child was entering first grade our school system switched to “whole language learning” as a way to teach reading, writing, grammar ect. This was pushed by the teachers unions and touted as the next great thing. By the time they dropped this wonderful program my son was in the fifth grade. His entire class, and the classes behind him were all subpar at grade level communication skills. The curriculum went back to more traditional approaches and the teacher’s and school system’s response to the students struggling to adapt amounted to “sucks to be you, work harder”. The fact that students were failing because they had failed to impart basic skills didn’t enter into their gestalt. There was no accountability, they all just washed their hands said “gee that didn’t work” and walked away from the mess they made. OK rant off.