On the wealth issue specifically, you can certainly read it that way. I mean, I think it's wrong, but it's not like there aren't things that can be viewed, in isolation, as just as emphatic support for the prosperity gospel as other passages can be viewed as a mandate for asceticism.
> I think the population of people that are left leaning and Christian practicing is low and they don’t tend to be as influential on the national stage as the religious right.
The left-leaning Christian types tend not to wave Christianity around like a cudgel in political discussions, which makes them less visible as Christians in those contexts, even when they are quite visible.
You also see a lot of extreme behavior tied to single issues like abortion or birth control. In short, people very passionate about an issue will often veer (or be steered) into an ends justify the means type philosophy.