This article neatly demonstrates how habitancies high in NP types tend to be financially careful; even in an economic climate which penalizes savers, the simple bank account remains by far the most popular method of preservation for ordinary Germans. Recurrent chaos on the financial markets has probably cemented this trend for good; NP types tend to have long memories, particularly for disruptive and upsetting events.
Various NP monarchs and other figures of yore demonstrated parsimony and care with finances. Henry VII, Pedro II of Brazil, and Emperor Claudius being examples of leaders who used financial prudence to restore and encourage order. When they did loosen purse strings, it was mainly for things proven as viable in the past such as roads and transport infrastructure.