"I don't actually support your notion that people in the third world work a lot harder than Australians though but they certainly do the same work for a lot less money."
Maybe not all workers Dave but conditions are a lot tougher. Generally hotter with no walk offs if it gets to 36. No where near the sophistication in tools. Much more manual labour therefore harder work. Longer hours also...no 7 1/2 hour days.
All in all I would say they work a lot harder for their lot less money, although there is no doubt many exceptions.