The Rich Can Afford to Work on Non-Wealth-Building Projects, But in a Precarious World, That isn't a Smart Move
When one asks for the wealthiest countries in the world, perhaps the most commonly used (albeit deceptive) measurement is GDP per capita. The logic is that if each resident, on average, is more economically productive, they would justify higher wages and thus more spending power to improve their livelihoods. A corollary is that the wealthy ought to also be the most peaceful. After all, crime and conflict are not good for business. No one would both investing, scaling up, and paying people to produce if they worry about their assets and very lives.