Race and Economics are related in other ways as well. For instance, some people may have better opportunities than others because of their race, while others could have worse opportunities. This is why a thing called affirmative action was created. It is supposed to help make up for past discriminations by forcing companies to hire people of different races. However, this is not necessarily the case, as oftentimes people find a way to work around the government.
Racism is an ugly thing.
So is thinking less or more of someone because of his socioeconomic status. Many good people have spent years searching for the solution to these problems, and have found some small amount of success. It would be wonderful if everyone was treated the same despite their background, but this is not something that will happen overnight. All that I can do is try to treat everyone with the respect that a human being deserves.