Vanity increasing air pollution

It is not uncommon to see pedestrians in many Chinese cities wearing face masks to protect themselves from air pollution. This is a warning against the poisonous air quality we are exposed to in many cities.

Initially, I used to think that Chinese people were tolerant and took measures individually to protect themselves against health hazards such as polluted air. But now I have come to realize that the more Chinese pedestrians try to filter suspended particles in the air with the help of face masks, the less the motorists will try to improve the air quality. Pedestrians' tolerance seems like a free ticket for motorists to pollute the air.