ABC:

State media said the girl's father was tending the family's hardware shop at the time of the accident and her mother was busy hanging laundry. Both failed to notice she had wandered outside.
Yueyue's death touched off another round of hand-wringing about society and personal responsibility. Many comments posted to social media sites said "we are all passers-by."

Some experts said an unwillingness to help others is an outgrowth of urbanization as migrants pour into cities and create neighborhoods of strangers. "Rapid urbanization not only affects China or Foshan, but anywhere in the world where you have a lot of high-rise buildings, where there is high population density, then the relationship with the neighbors, and with each other is affected," said Yao Yue, a psychologist and director of telephone help-line for distressed people in Beijing.

This is bad thinking. Urbanization socializes you, improves you, makes you more human. The country is the zone of darkness and regression. The isolation of the rural area is much closer to what humans least are—loners, solitary, acetic. Humans have evolved to be exceptionally social. And the urban is the ultimate expression of this innate sociality. Indeed, some of the densest places on earth are the most peaceful: Tokyo and the Netherlands. Density only becomes a problem when it's coupled with underdevelopment. This is the famous behavioral sink. If you are going to blame anything, begin with capitalism, which often distorts our inherent sociality.