You have to also factor in the working hours to see if 6k is worth it. If I were to work at a language mill for 8k a month working 40 hours than it would not be worth it to work here. Now I earn 6.3 K for working 13 hours a week for a public middle school. I do work 35 hours a week now, but I work as a private tutor; that has raised my salary 2.5 times. You add a free apartment and low taxes, and I live better here now than the USA. I know teachers here that earn 30 k a month. But they teach more specialized courses like IELTS and the GRE, or work at an international school.

IN the U.S.A. I would be earning 3 times minimum wage in Oregon, and that would still not be enough. Fifty-percent of my salary went into paying taxes and for rent.
Once you get to know how to increase your income here, it is ok.