IS this wrong?

I am a senior at a "prestigious" all girls catholic school in New Orleans. We were in keyboarding class today and a senior at my "excellent" school said she did not know what VII in roman numerals meant so naturally everybody laughed. then I got serious I was like its sad that a senior at this school does not know these simple roman numerals. Then we were kind of "fussing" because she got offended from me speaking my mind about the shamefulness of the situation. If only we as a cultural stop worring about the fancy cars, the hairdos, he nails, and all other things maybe we can get somewhere. I told tghis young lady if she were in a college class and said that then the teacher would have probably said Baby what school did u attend because I don't want my kids there. I do believe in having fun, but I always put my work first because I know how hard my mother struggles to pay tuition in high school. I was just too mad at that today. Am i wrong for being mad?