The book Why Nations Fail makes a pretty strong argument for the core feature of successful societies to be strong institutions with low perceived corruption. Sensible laws that are upheld equally are a part of that.
The US in particular benefits from an absurd amount of resources (not least of which is land), a perfectly safe geographic position, the global language and an immigrant culture. Basically able to coattail the British after independence, the destruction of much of Eurasia during WWII cemented its position as first. And great diplomacy, including the Marshal Plan, enabled the US to create an international system with many benefits and natural synergies with its inherent strengths.
The US in particular benefits from an absurd amount of resources (not least of which is land), a perfectly safe geographic position, the global language and an immigrant culture. Basically able to coattail the British after independence, the destruction of much of Eurasia during WWII cemented its position as first. And great diplomacy, including the Marshal Plan, enabled the US to create an international system with many benefits and natural synergies with its inherent strengths.