I have no idea what hotels you are talking about, however you must be staying in the cheaper style hotels. Where did you visit when you went to Australia? the outback perhaps?
Australia does not by any means have the extravagent hotels they have over in some countries with gold foyers and marble fountains but they certainly have clean, polite service. Sure some may not be up to scratch with industry standards like every country I am sure... These are the places that you should take note of and inform the industry board, especially if their star rating does not match their service.

In regards to Australia being dirty and rude I have no idea where you are getting your information!!! I myself am Australian. I am very clean and easy going person who is happy to help out and talk to people. Yes we have some dangerous animals however what place doesn't? You speak of dirty? What about all the sand storms and dust that covers our cars every day here, causing coughs and colds!! I think you need to take a step back and look at where you are.... I would not say this is a bad place but it certainly has it's dusty (dirty) days!!!