My relation to the "culture of power"

Lisa Delpit argues in "the silenced dialogues" that there are different codes of power and rules that some people who are not generally a part of the codes of power do not know. She states that "if you are not already a participant in the culture of power, being told explicitly the rules of that clture makes aquiring power easier." I completely agree with this statement and luckily I was familiar with these codes of power throughout my life.
I grew up in a middle class family with 2 older brothers and an older sister. My dad owned a barber shop and my mom worked for the city. My siblings and I all went to a Catholic school filled with upper-middle class people. I remember pulling into the parking lot filled with Mercedes and feeling the need to get out of our crappy old Chevy as fast as possible without being seen by my friends. Still, I knew how to act towards my teachers and I knew that I was supposed to be respectful and always follow directions. I went to Classical High School in Providence which is considered a "high performing" public high school which you have to take a test to get into. However at Classical I sometimes felt that I was the minority because many of the kids were other ethnicities and it shocked me how many kids came to school wearing the same clothes as the day before, who talked about losing their homes, kids who came to school an hour before most others did in order to get the free breakfast that was served, and so many other scenarios. I didnt realize it at the time but I know feel that they were at somewhat of a disavantage because they were not raised with the codes of power. They were, along with myself, in a good school that is ranked high but at the end of those 4 years many were not left with as many opportunites as I was. Countless kids, when asked about what college they would be going to, stated they were going to get a full time job to help pay their parents' bills. My brothers also went to this school and my sister went on to a private high school. I did well academically in high school and went on to college in order to advance my career.
Without knowing the codes of power I may not have been able to succeed thus far in my life. Hopefully after knowing these codes I will be able to pass them on to the students I will be teaching in the future so they will be able to succeed to the best of their abilities as well.