Having a job is the best form of welfare. In an economic downturn, it's standard for the national wage setting body to avoid raising the minimum wage, and in fact keep it below inflation
As was done here:
Minimum Wage-Setting Decision: Workplace - Fair Work
They kept the minimum wage steady, in the face of steady unemployment figures. A rise in unemployment would make a lowering of the minimum wage appropriate, to help employers in being able to afford to retain their staff. It is a tragedy if someone loses their job, when they would have willingly accepted less pay, only because the government mandated a level of minimum wage above what their employer could afford.
The minimum wage cannot drop below what people are willing to work for. Especially in a country like Australia, where we have an unemployment benefit. The unemployment benefit keeps the minimum wage artificially high, because people will not apply for jobs that are going to pay less than welfare offers.