For virtually all nations, economic growth is necessary. No growth usually equals no jobs equals no money equals very huge social unrest. All societies need an Industrial Reserve Army. This doesn't mean they've to be downtrodden or destitute but it's the lubricant which oils the machinery i.e. a group of people who will work and who don't have jobs but are willing to work.
Then there's geography and resources. If you've a huge unique supply of a product that's in demand around the world of let's say tobacco but are very far removed in a remote corner of the globe then for other nations to buy your tobacco, it'll cost lots in shipping. To help create your market, you've got to either subsidize your transport or lower your wages to be competitive. Lowering wages is of course easier when your IRA is huge. It would be a different story if it was oil or minerals perhaps, but that has problems with it too.
Australia has minerals but the market for it is very small e.g. Japan and China. Those two countries can dictate your price and if you don't come to the party there are a few countries ranging from Brazil to the USA who will gleefully take your place. A large business like Coles-Myer may decide the only way to get their products cheaper to the public is to lower the individual wages or cut down staff. Or they do it to make shareholders happy.
Geography can be cruel. Australia is in Asia/Oceania. It's surrounded by countries that are mostly poverty stricken or with a large poor population e.g. Indonesia, Fiji, the Philippines. So when it comes to making a living out of manufacturing, they either compete on wages with those countries or decide not to compete and kill its manufacturing services.
Usually lower wages do mean lower prices. But the problem is consumerism and credit. If people SAVE money to buy something then you can still have lower wages and prices that don't go berserk - the market decides. And then there's the profit motive. If you sell a product at let's say a 5 cent profit - what you lose in a higher price, you may well make up in volume of sales. In any supermarket in Australia, if you've a box of 24 jars of vegemite and you drop it and one bottle breaks, the profit of the entire box is now wiped out.
Countries like Singapore with no resources had lower wages for eons. And as the country progressed, wages crept up. Their government decided not to compete on basic manufacturing because they too couldn't compete with places like Indonesia's Batam where it cost $36 a month hire a driver. So they've consciously pushed the workers to attain higher skills to work in higher value, skilled companies ranging from Apple to IBM to Casinos.
If you're in the IRA, you'll still own a car, you'll just have to wait longer for it while you save. If you're not, then you may (and that's may) have the luxury of getting it sooner depending on your priorities.
Just my $0.02c worth.