I have worked in IT since 1986 and have only seen this sort of behavior from a minority of Indian men. a) - pretending not to hear a question when they realise that the other person will potentially make their cluelessness obvious and b) seemingly incapable of accepting correction from a woman. Admittedly, I started out in IT when the average IQ (or PRI, at least) of a programmer was probably higher (lower PRI was weeded out via aptitude tests) and have worked at companies considered leaders in their fields.
For what it's worth, as a materials engineer, I have encountered this kind of behavior professionally a couple of times, both from Japanese men. One guy when I was interning in Alabama ("You go to MIT? Is your daddy president of the university?"), and a student when I was TAing graduate thermodynamics (he never came to tutorials or talked to me about his poor grades, and I got the impression from him that my sex was the reason why not). Those are the only egregious incidents I recall of the many, many men that I have interacted with professionally, although of course there have been lower-level slights. I am now a patent lawyer, not a practicing engineer, but (to be slightly crude) whenever an engineer or scientist has tried to get into a dick-measuring contest with me, I've won.
