IMO there should be a union rep in Kununurra/Broome and all the GAAP zones where there is extensive flight training batting for the guys as they enter the industry. Helping with T&Cs unfair dismissals and someone to go to when they are being asked to do things that are stretching the company/employee relationship anonymously (flight and duty times, weights, non pilot duties etc) If you gain their loyalty then you will have them for life.
Free membership should also be given to the unemployed (with a clause after 2 years or so that they must be working) and a free membership to every Australian who gains a CPL for the first year. You should also only pay your membership once you reach a cap (say 30k or so) and it should be a nominal fee for the guys earning a pittance at the lower end of GA.