I don't think it's specifically a French thing, it's based on a wider truth: individual is powerless against the organization. Unless there's big money on the line, not many people can and will go great lengths, bear the mental burden and potential costs to go to courts and demand justice. Maybe %99th percentile would, and that's the small cost of doing business the way it is.

Companies having already established legal armies, they must know this very well. If they don't have a reason to care about your satisfaction as a customer, it all comes down to the final stand-off where the company says "so what, whatyougonnadoaboutit" and the customer loses by not being able to participate in the first place. If they had something to lose, customer services would be revamped overnight, but they don't.

I don't expect anything to change unless the will to treat the root causes magically appear one day.