With freedom comes many responsibilities that each person must maintain. If there is one break-down in being responsible, the whole community may be effected. The responsibilities and their reprecussions range greatly, depending on the situation. If the council that is elected to represent the community is not responsible, than the whole institution fails. An irresponsible council could mean unrest in the society, and even civil war.
Civil unrest has a greater effect in a republican society, than that of another.
The greater effect stems from the fact that more freedom is involved in the citizens. The citizens believe they have the right to uprise against the oppressing force. Another threat that the republic has, is the council it created. If coruption enters the council, where there are many people, many unethical things could occur. All of the bad things that could happen is because of the shear size of the council.