[NYer]

Decline in Ethics and Values - Failing Economy - Unemployment of the Working Classes (The Plebs)

Reason(s) why the Roman Empire fell

"Those who do not learn from history are forced to repeat it." - Santayana

[Strategerist]

Decline in Ethics and Values

Don't forget that for many Romans the "decline in values" was the loss of pagan beliefs and the rise of Christianity.