@Vanessachy, I'm speaking based on my experience interning, working, and helping to recruit while I was in public accounting. Obviously, it's more of a general statement.
That being said, good written and spoken communication is one of the biggest hindrances of foreign students. It just is what it is. And seeing that soft skills in accounting are becoming more and more in demand, it's something that will most definitely impact you in your job search.
Put another way, a recruiter would rather hire a sociable student with a 3.5 GPA who has client/customer facing work experience and participates in on-campus organizations and/or volunteering. Compared to an awkward and shy student who has a 4.0, has no other activities and never attends recruiting events (which honestly does describe a lot of foreign students with less than decent English skills).
These are extreme examples, but I guess i'm just trying to make the point that social skills and personality matter a lot in on-campus recruiting. Grades matter of course, but they are just one dimension of your “package”.
Anyhow, it doesn't seem to be an issue to the OP, so he might just be one of the unlucky few who just slip through the cracks. Recruiting is not a perfect process after all.
EDIT: To summarize, foreign students tend to either have difficulty socializing due to language barriers (because some have poor spoken English skills) or cultural barriers (they sometimes are shy to engage in small talk/networking/etc).
And it's completely understandable. My second language is Spanish, and my skills in spoken Spanish kind of suck (although I can read and write just fine). So I would probably fall in one of the above groups if I was trying to recruit for a job in a Spanish speaking country.
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