Great Discussion About Plagiarism

Today's session is about Plagiarism. Our English lecturer, Michael, gives us a reading material about plagiarism fact in a University. This reading material shocked me because there are a lot of people that do plagiarism and now they become a professor. I shocked because a thesis supervisor whom he's a professor, do a fatal plagiarism when he did his thesis to get master degree.
I realize that culture on aware and avoid plagiarism still hard to follow in Indonesia. But why? Who's wrong if a lot of students in Indonesia just stealling idea or words from other people's works?
Maybe there's no education about plagiarism in formal school?

Plagiarism is about honesty and morality....
I learn much from this day's discussion.