"focusing on the countryside and areas with ethnic minorities"
This statement reveals the 'problem' areas.
Much of China is 'remote', particularly in the west, north-west and north-east.
These rural areas have absolutely minimal 'services' from the Central Government. No electricity, no TV, occasionally a regional short-wave broadcast transmitter, no water, no sewage treatment, absolutely nothing.
Houses are often made of grass sod (roofs are also do suspended on hand-hewn wooden beams). The people are dressed in 'clothing' made from a sacking-like material. When I visited the rural areas of GuangXi Province my camping gear looked like luxury accommodation. I had GPS and my Sony short-wave, along with cameras. My (unauthorised) satellite-phone, through satellite InterNet, let me show them ShangHai with it's tall, weird looking buildings which they couldn't accept as being real.
A friend I know in NanNing, GuangXi Province, took me with her on her annual vacation to her home village and was an experience that made me realise, and appreciate, things we consider 'normal'. I tell you, hauling a plastic drum of water from the river makes you appreciate conservation!
But with education comes demands for services and facilities. The question will be, Is the Chinese Government prepared to foot the bill?