Yes, that seems to be a real Korean characteristic. I spend quite a bit of time in Seoul, really enjoy working there, and always have a great time if I meet any of these small "we've got this really great gadget that everyone will want" companies. (But never ever say yes to the question "well that was a nice dinner, but now we should go on to a bar because it's only 1am, and we know this really great new drinking-shots-for-cheap place, would you like to come ?").

But I think all the engineers must do the same marketing course, which seems to consist of "build a website, add a photo of the CEO and a few product shots, then leave everything else up to your distributors".