What incentive (other than violence) was there for pagans to convert to Christianity? What social technologies did Christianity have that led to its rapid spread into the pagan world?

by Gnarled_Root

Take, maybe, the Germanic pagans for example (Saxony, Scandinavia etc.). Sorry if the term 'social technology' might be a bit vague, I only ask this way because I've heard it phrased before that the pagan world was 'overwhelmed' by social technology that paganism didn't posses.

Steelcan909