"Youths from poor and rural families consistently end up paying much higher tuition in China than children from affluent and urban families. Yet they attend considerably worse institutions, education finance specialists say...The reason is that few children from poor families earn top marks on the national exams. So they are shunted to lower-quality schools that receive the smallest government subsidies. The result is that higher education is rapidly losing its role as a social leveler in China and as a safety valve for talented but poor youths to escape poverty."

So that's certainly true in America, and perhaps even more so in China. I think platforms like Coursera/Udacity can start leveling the playing field again for two reasons: first, if the technology is good enough (from personal experience, I would say so) and remains free, the studying-resources gap between rich and poor shrinks; second, even if you can't squeeze your way into a top school, you can still get a top-notch education for free. At the end of the day, i'm grossly oversimplifying things (i.e. the weight of credentials in Chinese society probably still far outweight actual demonstrated skill-set; or consider for a moment whether a family that lives on rice and a few vegetables a day can realistically afford a computer+internet-connection for their kids...), but i still think there's a sizable impact in here somewhere.