Well I kinda think it is a bad thing, if you are meaning lying to yourself and the mental gymnastics. If you are meaning if it is a bad thing to have intrinsic bias, I guess it depends what that bias makes you do. For me it just makes me curious, I'll usually just ask, I've always been pretty upfront.
If you're asking me these questions, personally I smile at the lady on welfare just as much as the hardest carnal worker. I really have no regard for their personage or job titles or how much money they make. For me it is much more about how you will treat me rather than how you treat yourself. I don't really care about the cars they drive or the money they spend. When you walk everywhere all cars look same to you, but it does make me think a lot of them welfare queens in their fabulous cars have offered me rides despite not knowing me at all or only very briefly, but never a single rich man has done the same.
As for living outside your means, well for me personally I don't really resist buying anything, I never been big on shopping, when I go out to the store I all ready know what I want. I see a lot of people do live outside their means though, but it's their name and their credit or debt to take. I don't have much by way of worldly riches, but at the same time I don't really need much either. So for me that subject is kind of a moot point.