According to my understanding, the Spanish Inquisition happened because wealthy Jews displayed their wealth a fancy possessions before the eyes of the Gentiles:
{1} Shevet Mussar, Chapter 17, paragraph 15:
Those who rise up against us seek false accusations against us when they see Jewish women decorated with gold and silver.
{2} Kav HaYashar, Chapter 18:
“Because of our many sins, the Gentiles have their eyes on Jewish wealth.
It is a very good idea to conceal your wealth from them.”
{3} Kav HaYashar, Chapter 82:
Imitating the fashions of the Gentiles… they provoke the jealousy and hatred of the Gentiles. They look at us and notice that Jewish women appear better dressed than the Gentile noble women; and we are in bitter exile, where according to justice we should be wearing black clothes to mourn the length of our exile and the destruction of the Temple.
{4} “Because flashy clothes and jewels draw so much attention to themselves, they may also draw the ire of your clients who may secretly question why your clothes are so much more costly than their own. Wearing flashy outfits is particularly dicey during a recession or during a down business cycle when company layoffs abound.”
SOURCE: 301 Smart Answers to Tough Business Etiquette Questions (page 142) by Vicky Oliver, year 2010, Skyhorse Publishing