I made far more as a postman!
Most government schools here are paying about 30,000 baht a month - and they want you to have a degree! When I lived in Australia, I worked as a postman for a while and I was paid $27 an hour, then after 8 hours it went up to 1.5 times your hourly rate. After 10 hours it went to double time. The problem in Thailand is that the students want everything to be fun but do not want to put in the hard work. Thailand has caused it's own problems and there is no easy fix. If you are wondering why I didn't teach in Australia, go and ask any teacher what it is like working there!
Stewart