Why Cheat At Harvard?

Harvard is one of the hardest schools to get into, so if you get in then your obviously smart, so why cheat and plagiarize? I think that it is just wrong because all the other students have to work to their full potential while some other students just cheat, its just not fair. If the instructions of the exam state that you are not allowed to collaborate and plagiarize then don't do it. It's fairly simple just to follow instructions. Even if the exam is hard that still does not give you the right to cheat, plagiarism is one of the most used things when it comes to writing. The students should be expelled because how do the staff of Harvard know what else they have cheated on, they could have cheated to get into Harvard! It is lack of intelligence to think that you can cheat and plagiarize without it being noticed.