Yes, Social stratification by wealth is color-less.  Some people of color who I have met are totally the most uppity when they have bucks.  "Oh. My God, look at that girl, she's country"  In many brown nations, the darker you are the less you have social status.  I have seen examples in my travels.  The elites in these countries think that it is normal to use and abuse the average person.  Many in the 3rd world are conditioned to think they are "less" that the elites.  If you are American and have not traveled, you cannot fathom the difference between here and there.