Well, I hate to say it but maybe it's time you changed career. Are you really gonna spend the rest of your life trying your hardest to deter all the wannabes. Whether you like it or not, times have changed and will probably keep changing for the worst. Surely you have more of a life than just to post on here about your colleagues "doing you over" as it were. When there are no other jobs out there it's pretty easy to except a contract that pays.
I'm not saying I agree with how the industry is going. Maybe it's time to take a look at yourself and realise that you've missed the good pay boat. Sorry to say it bud but you should just give up complaining on these forums.
Good luck