Earlier quoted context omitted.
It's different if you worked in France though, right? From what I understand, the grandes écoles are very similar. It's not so much that you'll get an education that's ten times better, but you'll have a degree from a school that says you've been selected for leadership.
Yes, probably, I mean I come indeed from a Grande école but since I've never actually worked in France, it's never really been asked for. And the few times when ranking was important (visas for Japan and Hong Kong), the fact that it's not well ranked internationally means that I got no exta points. In the end, I do think that degrees matter less than what people think and that it's completely possible to have a good…
As an example, in a previous job, I noted that the new French software engineer had come from INRIA and was a graduate of a Grand ecole. The fact that this resource went on to demonstrate well above average work and domain abilities was not a surprise to me.
So note that some of us do pay attention even if it is not mentioned during recruitment.