Minimalism is a philosophy that many find appealing, but what connection does it have to wealth?
Minimalism, by the Minimalists - https://www.theminimalists.com/minimalism/
Horror Vacui, Principles of Design, by Lidwell et al - http://people.sunyit.edu/~lepres/thesis/principles/129_pdfsam_POD.pdf
The Class Politics of Decluttering, by Stephanie Land - https://www.nytimes.com/2016/07/18/opinion/the-class-politics-of-decluttering.html
White Space: An Overlooked Element of Design (Coates, 2014) - https://core.ac.uk/download/pdf/43645364.pdf
Posessions and the Extended Self (Belk, 1988) - https://academic.oup.com/jcr/article-pdf/15/2/139/5210897/15-2-139.pdf
How do storefront window displays influence entering decisions of clothing stores? (Oh & Petrie, 2012) - https://www.researchgate.net/publication/251630953_How_do_storefront_window_displays_influence_entering_decisions_of_clothing_stores
A fun parody of Kondos philosophy in an IKEA ad, demonstrating conclusively that there is nothing capitalism cannot harness to sell you stuff - https://www.ladn.eu/news-business/actualites-annonceurs/ikea-parodie-marie-kondo-publicite/