Sorry guys, but the is the way it works in the market place is that the scarcer the comodity and the greater the demand, the greater the cost of the product - seen it before when vegetables become scarce because of bad weather on the farms etc. The way it is with flying instructors is that there is an apparent surplus of instructors and therefore they are prepared to work at low pay rates and the ones that I have spoken to regard the job as transitional and rightly belive that it is important not to make waves.
I don't see any possibility of change until or unless there is a shortage of instructors in the market place and demand outstrips supply. As it is, Plumbers are in short supply wheras pilot instructors are not. - And that's the reality.