Why do people suck?

So, my friend is very pretty. She always gets special treatment from guys. For example, she went to the doctor for an issue she was having. The man at the counter thought she was cute, so he didn’t charge her for the appointment. Then, she wrote a paper today that was worth a large percentage of her grade. (She goes to a different college than I do. This is all based on her words.) She made many spelling errors, wrote it half an hour before class started, and didn’t even meet HALF the words count. She got a 98% with the notoriously hard grading TA. He also bumped up her homework average to a 95% even though they haven’t had any other assignments. It brought her from an 83 to an A. All because he thought she was cute. I’m so pissed. Why can’t people be fair?