Opportunist abound everywhere in every field. Aviation is just another form of transport into places as being discussed here. The grog problem at indigenous communities stems from two fundamental things. The white man who came & changed the aboriginals way of life many years ago (whether they wanted it or not) & therefore introducing the ways of at the time modern civilization and the fact that isolation & the ability to not be able to similate into the white mans way of life has given these people little reason to do anything else and has left us (white fellas) with an unsolvable problem of which aviation is just part of it. Fix the core problem (if at all possible) & then discussions like this wouldn't exist.
Am sure the use of planes has been used many times for the transportation of booze into areas where it's not allowed but does prosecution eradicate that problem? I doubt it but 'Fred G' is right, we are responsible for what we created in the first place to some degree.
Personal opinions only as always
CW