Take the decision to buy that shiny SUV. People know that the age and quality of the car you drive is linked to your personality and financial success. If you buy yourself a Model X, 95% of people around you will perceive you differently: environmentally concerned, passionate early adopter, bad at ROI calculations. Driving a beater even though you could obviously afford more is another way of signaling your prudence and risk tolerance.
And why not? We are first and foremost social, tribal creatures. So I would say you're not an odd duck, there's just a different set of values you're trying to signal.