The spiralling logic of comparing fortune/misfortune can drive anyone nuts. A paraplegic that looks at someone fully functional can feel cheated, but that same paraplegic can look at a Quadpraplegic and be very thankful. I can look at someone that is in their teens and feel old, forties and feel young. I try to avoid this, not out of apathy or lack of humility, but out of reality. You can be happy ALL the time, or sad ALL the time-as long as you compare yourself to the right person or situation. I judge MY fortune (or lack of) as just that, Mine. Not someone better or worse off. I came from very humble beginnings and worked very hard for my success. Sure, it would have been alot tougher in Cambodia or if I was disabled-but it just isn't that way-that is my reality, thus the only one I know. I will feel sympathy for others, wish them well, and do what I can to help them, but guilt for my own success, health, and fortune will NEVER enter the equation.
As far as keeping my big vehicle, it is not a matter of status, or blatant disregard for smaller cars' safety or the environment. It is what fits my lifestyle, nothing else. If an Outback (or whatever) would haul my horses, get through the mountain snow, pull a boat trailer, run shuttle for 6 people, and be safe in an accident, I'd sing up for one tommorow-I hate feeding that pig-but it's a pig I need, and a pig I want.
Anyway, enough rambling. I see where you are coming from, understand what you're saying, even agree with you, but it will not make me feel any differently about my situation.