The principle of social identity means that when a person is unable to judge whether his behavior is reasonable when the surrounding environment is uncertain, he often decides what he should do based on the behavior of other people around him. This behavior mode is completely unconscious and conditions Reflective, so biased and even fake evidence can fool us. According to the above definition, which of the following is the following that has nothing to do with the principle of social identity? ['After Xiao Yueyue was crushed by the car, none of the 19 people passing by took the initiative to help.', 'Someone is being attacked by a gangster, and hundreds of people watch around, but are indifferent.', 'Similar reports appeared elsewhere after news of the kindergarten attack.', 'Manufacturers always associate their products with the current cultural boom.']