I don't get it any more than you do. I think it's an attempt to mask self-loathing, as in "if I act like I'm not worthless, others will attribute value to me." Like companies that put $600 price tags on something that costs maybe $10 to make, plenty of people buy it.  Ironically, in the case of Louis Vuitton, there have been counterfeits found with higher quality stitching and materials than the "genuine" articles.