I agree that the bias here is not only automated by an AI system. There indeed seem to be a more traditional marketing setting made by humans.

I think social bias is orthogonal to capitalism.

However, it is amplified by modern technology used as more efficient and intrusive marketing tools such as Fb advertisement.

One should still keep in mind that the newsfeed is still optimised by an algorithm in addition to human settings.

I do NLP research, code, sing and sometimes write blog posts.