"most Christians are in debt up to their ears...is it the result of pride?"

I'd have thought it could well be a result of covetousness, e.g., oooh, Jones has got a new Audi, I'd better get at least a Merc to keep up with him, or even show him a thing or two.

Walking around preening oneself like a peacock or demonstrating a superior, Queen of Sheba-like attitude might be manifestations of excessive, antisocial pride. Snobbery is another symptom. But pride in moderation is a good thing. We don't want to lose our self-pride completely and go about looking like slovenly tramps/hobos. "Take a pride in your appearance/work". These are commendable aspects.