“Rome at the time of the Catalinarian conspiracy was not the Rome of centuries before, when honor, virtue, and character were the watchwords of Roman life. By Cicero’s time, the place was rife with corruption and power lust. The outward appearances of a Republic were undermined daily by civil strife and a growing welfare-warfare State. Many who gave lip service in public to Republican values were privately conniving to secure power or wealth through political connections. Others were corrupted or bribed into silence by government handouts. The Republic was on life support and Cicero’s voice was soon to be drowned out by a rising tide of political intrigue and violence and popular apathy.”
http://www.fee.org/the_freeman/detail/how-to-lose-a-constitutionlessons-from-roman-history