Earlier quoted context omitted.
Staggeringly unequal benefits distribution makes for an unhealthy economy. We don't describe the economy of Mexico or Brazil to be healthy even when they are at high employment and growing GDP mostly because the burgeoning economy doesn't produce a similar ripple in their societies.
> Basket case economies are reflected in bond yields. The US pays little to borrow money because it is a safe haven. Or because it uses its huge military might to make sure it is so.
and don't forget about the petrodollar that's financing this military superpower.
The USD enjoys an unfair competitive advantage over its peers and this distorts the financial markets immensely and more importantly the balance of power in international relations esp. in times of political crises and military conflicts.