For those in control ... there is no more terrible thing than to have all your workers talking amongst one another to discuss how terrible their situation is and what they could all do about it.

It's the same in prison ... if the guards and management keep everyone in control by isolating them all. Once the inmates start talking to one another, they start to conspire and plan on what to do about their situation. If they plan long enough, they'll figure out how to do illegal activity, find specialty items or contraband ... give them more time and they'll start trying to figure out how to break out of their situation.

Then when things go too far and all sorts of illegal activity is taking place and people are trying to break out ... the guards and managers will shake up the prison and breakup the communications system they were all using.