It is easy to say that you care more about the job waiting for you and not what other will think. Believe me, that was my mindset before. You will understand what we mean when you actually get here and experience it. There is a running joke that an engineer here could just be a carpenter in their country, all because of what his/her visa states. It's an offensive joke, yes, but you would be surprised that it is true in some companies. Like what acchabaccha said, be prepared.