What theories explain the fall of the roman empire based on a change in values

The most straightforward theory for Western Rome's collapse pins the fall ... but Italy and the city of Rome - which only had symbolic value for many ... River in the Middle East, but its grandeur may have also been its downfall ... But during the decline, the makeup of the once mighty legions began to change. History, Facts and information about the fall of the Roman Empire; What led to the Decline ... What reasons led to the Decline of the Roman Empire? ... The values, the ideals, customs, traditions and institutions, of the Romans declined ... power for all their needs, and this reliance inhibited technological change and growth.