How can people complain about the quality of public education without considering teacher salaries?

Does anyone believe that we can hire highly effective teachers with the current teacher salary schedules? let alone math and science teachers? We complain about public schools and lacking quality teachers, and yet we pay teachers very little. Then we complain about being unable to fill math and science positions knowing full well that the private sector offers almost double the salary. Is it not obvious that (in general), we cannot expect to entice the best teachers with the lowest salaries? (You get what you pay for.)