So salary is the only indication of success? Grades are used to indicate how well a person does in a class based on certain parameters (tests, homework, class participation). Salary only indicates how much a person is compensated for what they have done. Its comparing apples to oranges. Also, do your parent owe you something? So what they don't make a huge salary, if they can put a roof over your head and food on the table be happy. It is your responsibility to your parents and yourself to do good in school, they want the best for you which may mean earning a larger salary then they do.