Because it's already in their cultural pressure to get in very good school and very competitive at anything. If you see those asian meme parents disgracing kids getting B+ at exams or smtng, I tell you, that is very true but still funny. You'll never meet your aunts without their mouths trying to compare you with the other kids. I'll tell you, I got in medical school program after highschool and still my dad isn't seem so proud cause I didnt get a certain award that he wants me to have on graduation. Plus, I guess it's because of the discipline and virtues or values to be less violent and not cheat? Uh, cheat? Well, actually I have and for sure my classmates have too but kinda mild way? Like giving-sign-language-to-your-seatmate-on... kind of cheating. Not like leaked examination or back door payment. About violence? There is but in asia cause of course, it's where they live. You tend to be more careful at places you are foreign into.