Sample Plagiarism Cases

I agree the punishment with the cases.If someone cheated and he/she didn't be punished,

I think the consequence is not equal.Those hard students must thought scores were not equal,why our scores low than these cheated,even if we studied of hard.If the cases could punish people of cheat who understood the action was wrong about cheat,I think the punishment is very meaningful.Someone want to get better scores to cheat which is common action,someone thought the action is already legal so didn't care.But I thought the action is serious problem,If you don't improve the thinking.
I don't know how to advencement about our knowledge,if someone use illegal . :(