I am aware of the rates foreign laborers earn. There may have been some exaggeration in my statement, but not much. If you're making barely 40k before deductions, have no other supports and need to pay rent etc, you are not in fact doing much better than someone making 20k per month who has free accommodation. It's a terrible wage and you'll struggle to live any sort of life on it. Again, I'm not out to minimize the plight of foreign laborers; only to highlight just how bad 40k is as a salary for a person who needs to support himself independently.
I'm also married to a local and have been for some years. I'm aware of local salaries. Yes, they sometimes suck, but there are options. My wife was offered jobs at 24k or thereabouts after graduation too and she turned them down. She does somewhat better than that now. A few things: there are other bonuses/benefits involved in the salaries. Local employees get promoted. They also more often have local supports such as family and friends. They aren't thousands of miles from home, needing to purchase international airline tickets to visit home, nor having to save up seed money to re-establish themselves in western countries, and all the expenses that entails, when they're done with their job.
FYI, based on what you've said in your posts here, I've been living here roughly 3 times as long as you stayed here. Really, "just know" I do know how low it goes and a lot more besides.
Um, no, they won't, unless the only people you know are 20-somethings in their first jobs. At best, 40k is a so-so salary. And if you mention that it comes with no annual bonuses, no holiday entitlement or pension plan, "they'll scratch their heads" at why you took such a crappy job.
But back to the real point: It's a terrible wage to offer an FT. Even 600 nt per hour is too low. 530 is just cheek and exploitation.