Videocracy is the power of the image over society.
Examples
"Voter-generated-content", such as videos on YouTube, have been identified as examples of a developing videocracy.
In Italy, the election of Silvio Berlusconi as Prime Minister in 1994 was seen by many as a "media coup d'état [and] a drift towards 'videocracy'".
John Kifner writes that in Romania a 'videocracy' was involved in the overthrow of Nicolae Ceauşescu in the "first revolution on live television".
References
Videocracy Wikipedia(Text) CC BY-SA