All right, but apart from the sanitation, medicine, education, wine, public order, irrigation, roads, the fresh water system and public health, what have the Romans ever done for us?
Nothing!
Roman Meal Bread.
Baths?
On a more serious note, I think the importance of the spread of the universal church of Catholicism and the universal lingua franca, Latin, is not given enough attention.
Setting aside the potential civilizing effects of Christianity as a religion, the effects of a written language which could be used in every corner of the Roman world for trade and education cannot be dismissed lightly.
Most of the remarkable public works and infrastructure fell into disuse or went unrepaired, but the language and religion survived.
Brought peace?