This is a good point, supply and demand affects prices, but I /think/ you have made the assumption that the goods bought by the wealthy do not overlap the good bought by the poor.
Housing is the classic example, where the rich have pushed the pricing up so high that even moderately wealthy people can't afford to buy houses outright without multiple years worth of salary. The result is a shift towards renting rather than mortgaging, which mostly gives even more money to those people who drove the prices up to begin with...
Housing is the classic example, where the rich have pushed the pricing up so high that even moderately wealthy people can't afford to buy houses outright without multiple years worth of salary. The result is a shift towards renting rather than mortgaging, which mostly gives even more money to those people who drove the prices up to begin with...