I spent a year there, mostly in SA and the NT. A six pack of beer and a pack of smokes will set you back $50. When it comes to road signs, the "are you feeling sleepy" every few kilometers really makes you... sleepy. Police presence is heavier than in America. There are checkpoints going into towns. Then of course there's the separate window for alcohol for Aboriginals, who line up early in the morning, the scanning of your driver's license every time you buy beer...
When I first got there, I stayed in King's Cross, Sydney, and it was fairly wild. I heard that neighborhood isn't there anymore, and hasn't been for some time.
I'm Australian, currently live in Sydney and I feel as you do, but none of your examples explain your claim.
No, I don't have time to list the ways Australians follow rules (more so that Germans), it is 1:15am, and I'm going to bed.