I find it hard to imagine how you tie up rapacious capitalism and the gospel.

It's always dangerous to speculate about the thought processes of people very unlike oneself, but I can't help wondering if American religious-right types at least might tend to deal with this by having a strong Cold War type instinct to Avoid Thinking Commie Thoughts, which could insulate the two belief-clusters from ever quite coming into contact with each other – any question of the form 'really, how are these two things remotely compatible?' gets squelched early, before you start to think it might need actually answering.