My response is really just a guess. maflynn's response sound pretty accurate to me, However, I'm not sure if the "arrogance" is real or just perceived. I wonder sometimes if it is just cultural differences that we perceive differently than what it is intended. But, since I have little actual expereince with the French, then I cannot make a call on that either way.
I also think of some of the politcal moves that we make differently. I cannot think of a specific instance, but it seems that fairly regularly the French (government, i guess) takes a position on something that is completely different than what the US would make. While they are likely making decisions based on what is best for them, we may look at it from our side of the fence thinking that they are going against the grain... And I believe that this is rooted in our own arrogance (as Americans) to think that everyone else must do and say exaclty what we do and say...
Just my thoughts......