Generally, polling ignores what people know about the subjects they are queried on. In a culture that is not obsessed with measuring and rankings, this omission would probably be regarded as bizarre. But let us imagine what we would think of opinion polls if the questions came in pairs, indicating what people “believe” and what they “know” about the subject. If I may make up some figures, let us suppose we read the following: “The latest poll indicates that 72 percent of the American public believes we should withdraw economic aid from Nicaragua. Of those who expressed this opinion, 28 percent thought Nicaragua was in central Asia, 18 percent thought it was an island near New Zealand, and 27.4 percent believed that Africans should help themselves,’ obviously confusing Nicaragua with Nigeria. Moreover, of those polled, 61.8 percent did not know that we give economic aid to Nicaragua, and 23 percent did not know what ‘economic aid’ means.” Were pollsters inclined to provide such information, the prestige and power of polling would be considerably reduced. Perhaps even congressmen, confronted by massive ignorance, would invest their own understandings with greater trust.

The fourth problem with polling is that it shifts the locus of responsibility between political leaders and their constituents. It is true enough that congressmen are supposed to represent the interests of their constituents. But it is also true that congressmen are expected to use their own judgment about what is in the public’s best interests. For this, they must consult their own experience and knowledge. Before the ascendance of polling, political leaders, though never indifferent to the opinions of their constituents, were largely judged on their capacity to make decisions based on such wisdom as they possessed; that is, political leaders were responsible for the decisions they made. With the refinement and extension of the polling process, they are under increasing pressure to forgo deciding anything for themselves and to defer to the opinions of the voters, no matter how ill-informed and shortsighted those opinions might be.

excerpt of Technopoly - The Surrender of Culture to Technology, by Neil Postman