Thomas J. Stanley said this quote

How do you judge the professionals you patronize? Too many people judge them by display factors. Extra points are given to those who wear expensive clothes, drive luxury automobiles, and live in exclusive neighborhoods. They assume a professional is likely to be mediocre, even incompetent, if he lives in a modest home and drives a three-year-old Ford Crown Victoria. Very, very few people judge the quality of the professionals they use by net worth criteria. Many professionals have told us they must look successful to convince their customers/clients that they are.