There seems to be two possible issues that posters are suggesting:
A) Frum businesses shouldn’t be advertising things that don’t fit so well with Jewish values.
B) That people shouldn’t be buying wildly expensive things even if they have the money for it, and even if they give a lot of tzedaka
To which I answer-
A) A big reason for advertising, especially in jewelry and fashion, is to create an “image” of a brand or company, and not necessarily to sell the pictured item. Showing images of high priced items gives the consumer the idea that the store is high class, which leads regular consumers into their store when looking for a nice watch of any price.
B) There’s no issur of buying expensive watches, clothing, etc. Additionally, expensive watches have an extremely high resell value (unlike the Ferrari’s that posters keep mentioning), and can also be bought for investment too. I know one person who had $1.5 million worth of watches, each one 30-40k and up, most of which were not even worn.
C) Mind your own business.