The keeping of key cards, as well as the supply of booze, by charting companies was endemic when I worked in the KIMBERLY (there is only 1 kimberly W.O.G).
The alcohol problem is not race specific, it is location specific.... if your home was in these remote places and you grew up in a cycle of abuse then it is all to easy to maintain that.Blame the government for suppling the means of addiction
The pilots/companies that fly the grog out are not to blame, as the locals would find another way around the supply chain if it wasn't flown in.
I worked in the back bar at Halls creek. On a Friday night we would sell 2 PALLETS of moselle casks, at $22 a throw ( these same casks are were about $6 in Syd/melb etc). Takings on an average friday night would be around the $10-12k. The town had a population of approx 1000 people.