Is it strange for a grad student to want to get back at society?

Yes I am a grad student, I earn less than the man who makes sandwiches at the subway and I love weekends because I can work in the library with fewer people around. My life is of a medieval quality: I have become so used to poverty that I sometimes wonder whether people who ride cars (and i walk), sleep in beds (and i am on the floor) who have well heated homes, who buy from macy's and not on craigslist are actually some superior kind of human being. Is it strange that I want to get back at this society which has reduced me to this helpless bug lying on its back and struggling? Why is it that day in and day out, I have to swallow looks of pity... even from semi literate clerks? Why do i have to look towards the ground and say apologetically: Do you know where they can get a bus, when a dumb clerk tells me to just hop onto the interstate number so and so? Why does google maps tell me how long a drive it is? Why have I been so despised and downtrodden?