A link was sent for my consideration on the Financial Independence Telegram group lately. You can read this old paper here. The paper concludes something which we already have been aware for quite some time, a guys' reproductive success is tied largely to his economic power. 
But in many cases, economic power is invisible. No one gives a damn about my cash flow if I all I do is watch anime, paint miniatures and play RPGs the whole day. So males find ways to signal their economic prowess - they buy flashy watches, go skiing in foreign countries, and drive European cars to demonstrate their economic prowess, sometimes using credit to do so. Sadly, statistic shows that these peacocks do succeed in modern society. Surveys find that 'peacock' males wind up having more sexual encounters over time. Our dating websites confirm that Singapore women love Singapore men who...