This is shown to us by the apologists and early fathers of the Church.

Christianity was then but the religion of the humble and the poor, a form of democracy, of socialism struggling against Roman society.

And when the latter toppled over, rotted by money, it succumbed far more beneath the results of frantic speculation, swindling banks, and financial disasters, than beneath the onslaught of barbarian hordes and the stealthy, termite-like working of the Christians.
The money question will always be found at the bottom of everything.

And a new proof of this was supplied when Christianity, at last triumphing by virtue of historical, social, and human causes, was proclaimed a State religion.

To ensure itself complete victory it was forced to range itself on the side of the rich and the powerful; and one should see by means of what artfulness and sophistry the fathers of the Church succeeded in discovering a defence of property and wealth in the Gospel of Jesus.