You'll notice that 2 items in your list are about having money. If you come from a well off background, then you care about getting your degree, but not about actually acquiring skills/knowledge. Once you graduate you'll get a fictitious job for your parents' company, or something like that.

I'm not sure if any data is available/accessible on the topic, but I'd be willing to wage that the young Chinese person who is the first of their family to attend university cares much more about understanding the material so they can then get a high paying job than those who can afford to buy essays from Taobao.