In France wealth is secondary to the place you live in and where you come from (in terms of divisions in the nation).

Of course if you have French nationality your "race" does not matter (there are no programs for minorities) but the reality is, also of course, different.

Looking at the last 40 years, I wrote say that Islamism has become the greatest divider (for 10 or 20 years now). This was a non-subject when I was a kid in the 80's.