Why is the salary of brick movers in Australia so high?

People in developed countries are engaged in high-tech and service industries and are unwilling to do these dirty jobs, so even if they are hired with high salaries, no one cares. Only foreigners are willing to do these jobs. Because the labor cost in Australia is relatively expensive, especially this kind of hard work depends on the local economic development level, national conditions and the relationship between supply and demand. Generally, the high salary of an industry depends on the relationship between supply and demand; Generally speaking, wages in foreign capitalist countries will definitely be higher than those in China. But in fact, Australians have the highest income in Australia, Dubai people have the highest income in Dubai, and China people have the highest income in China. Because people who have the ability to travel to other countries are not in the same category as the minimum wage, it depends on professional skills and social relations.