I think you should go to Asia only if that's what you want to do; as in, because it has multiple benefits. Don't go expecting to find a girlfriend, because you'll only end up disappointed. Just because they are a higher percentage of girls you find attractive in said country, doesn't mean that you'll click with any of them, or even that they'll like you in return.
I also agree with what other posters have said. You do have high standards, because you consider yourself a good mate, and therefore think you deserve the best. Nothing wrong with that. The issue is that because you're looking for 'the one' you're not leaving any room for compromises. 'The one' doesn't exist. And if they do, there's no guarantee she'll be in Asia or at least anywhere where you are. To me it sounds like you already have a great life, but you're not happy, and as a result you think having a 'great' girlfriend will fill the void. Almost like having a full deck of cards. But unfortunately all relationships come with problems, responsibilities, and flaws. Having a girlfriend will not automatically make everything all right, in a lot of situations it can actually make things harder.
Having said that, if you want to go to Asia as a break, and to get a new perspective on life then I see nothing wrong with that, although I wouldn't advise you going for such a low wage when you clearly don't need to. An eternal quest to find the 'one' and thus have the perfect life is always going to disappointing, to be frank. The 'one' comes along when they come along, until then it's almost always better to focus on yourself and what you want.
I also have to ask: why do you think having a girlfriend will make you happy?