But, can we regard New York or San Francisco as American thoughtlessly? Of course, we cannot.
Any mature society is composed of all kinds of classes, and any single class cannot represent the whole society. We can see that especially in some country, like China, with large difference among every class. In China, its major cities, like Beijing or Shanghai, no matter how prosperous, can never stand for the eight hundred million farmers most of whom are live in a relevant poor life. So, if you only study major cities, you will never comprehend profoundly a real China, an extremely complex society.
We should go to metropolis and interview elites to comprehend advanced levels. Only by these, can we understand almost all the characteristics and then conclude that which of these is the most important.
Only by this, however, cannot we get the conclusion that scandals are useful. On one hand, scandals are just the corresponding results when a society occurs severe problems, just as a person will have a fever after he catch a cold. However, whether these scandals on earth are beneficial to our society depends more on our attitude to them. If we only look at them out of curiosity and leave them aside as this scandal is supplanted by another, these scandals, no matter how numerous and serious, would make no sense. On the other hand, just as nobody want to realize he has caught a cold after he has had a high temperature, nobody want to realize that their society has suffered from serious trouble after terrible scandals have come forth. Any normal society should enhance its supervision system to avoid the emergence of scandals rather than take measures after suffering scandals.