The intelligence of various collective consciousnesses is badly degraded by increases in the ease of widespread communications.
The easier it is to broadcast newa and opinions over the entirety of an organization, the more chaotic do responses to such informations become.
When communicqtions were limited to personal contacts and, at most, additional books, the role of elites in dominating national affairs was clear.
Then printing added influential newspapers/magazines, and the influential strata in societies enlarged.
Then telegraphs, telephones, radio, tv, etc. followed in a clear order, and at each enlargement of communication political and financial chaos increased fairly clearly.
We are presently buried in political chaos in the USA (or, for further examples, Iraq, or Afghanistan, say). Everywhere, the results promise to sadly compromise reasonable ideals for democracy.