Personally I think it it rather fruitless to be discussing salaries.
There is such such divergence. What does it accomplish?
I think , for the most part, salaries have been the determination and hard
work of strong teacher associations. Some states and some personal beliefs
just won't accept the effectiveness of teacher bargaining. I guess you get
what you believe in and are willing to fight for.
If you think that your local boards will benevolently give you some kind of
equitable salary, then I suggest you need to look at a little bit of
history.