Migrants to Australia not using their qualifications

The Australian reports that Rural migration program failing

A federal Government review of its expansion of the general skilled migration program has found that while overall employment among the foreign worker population is high, many are not using their qualifications. [emphasis mine]

I personally know of professional web developers retraining as acupuncturists, mechanical engineers doing handyman's job, electrical engineers driving courier vans. These people find it difficult because
1) there aren't enough opportunities for their kind of work in rural communities
2) Australian employers are generally worried about hiring the wrong kind of people. The more the Government talks about unfair dismissal laws, the worse the perception gets among employers that they can't fire their employees.