saint vs roughneck

This week in class we had an assingment that included us reading an article about the difference in two groups of guys and how they get treated differently due to there appearance and social standing even when the two groups of guys acted equally as bad outside of school.
One group, the saints, were upper middle class and acted polite and dressed a certain way and had to live up to a standard. They got viewed as being well behaved kids when in reality they did worse things then the roughnecks who were lower class an appeared a certain way to the community. The saints were deviant and used their social structure as a means to go out and drink and vandalize and cause dangerous situations. While the roughnecks weren't "saints" themselves they kind of lived up to the potential that society gave them and were accused of things sometimes they didnt do because the community was biased toward them. I see myself doing this even tho it is wrong. For example, when we get into a wrong part of chicago considered dangerous or a part i am unfamilar with i tend to assume the worst and put these people into a social structure. My actions define the way roughnecks will  behave because of the status and lower potential i give to them. Its ironic to see that even some polite kids who get good grades and come from good families act just as unjustly as the roughnecks who come from totally different backgrounds.