Waste of education budget

I met a foreigner who studied and graduated from a polytechnic. She is required to work 3 years in Singapore to contribute to our economy in return for the cost incurred by the government for her study.

The Ministry of Manpower requires the employer to pay a monthly salary of at least $2,200 and a levy of $400 to a S Pass holder. She was not able to find an employer who was willing to incur this cost.

A monthly cost of $2,600 appears to be too high for a poly graduate who does not have outstanding results. As she could not find a job, she has to return to her country.

Singapore would have wasted the cost of educating her for three years.  Is this how our education budge is being wasted?