Any benefit from the post world war II order(rules based order)/How countries are benefit from the following 6 rules?

The following are 6 rules:

1. Democracy and basic human rights

2.Alliances(EU, NATO, etc)

3.Freer trade

4.Multi-literalism

5.Trade Agreements

6.Free flow or financial capital and human capital

(This is American Economic Class. Question refers to American economy)