Paraphrasing a comment I read:

'Think of the food supply, we have a surplus supply of food but still people go hungry. Increasing the supply further does nothing to address the underlying issue.'

The issue in South Korea is cosmetic doctors make 2 to 3 times more than those in fields deemed necessary, which the government sets caps on. This means fields deemed necessary are understaffed. The governments current plan in to try and flood the cosmetic labor field to bring down those incomes and force people to work in the needed fields. It's a stupid approach because they aren't able to say what the true issue is, and as such will never actually address the problem.