accuracy of prejudice
As an economy advances, the number of different units available in the marketplace increases. This increase in availability and complexity gives individuals more options to express themselves via their consumption patterns and thereby allows them to more accurately judge each other from their looks. In other words, as an economy advances, its participants become more inclined to be prejudiced since prejudice generating models become more efficient.
Similarly, it is not surprising that parole algorithms resulting from machine learning techniques being applied in the judicial domain tend to be severely biased. More data allows more discrimination and machines do their cold-blooded calculations with no understanding of the historical and sociological context in which the data they are fed was generated.