Good relations with America and its Allies the European Union, Japan, South Korea & Taiwan means access to the largest trading bloc in the world - 35 trillion dollars economy/year, technology transfer, jobs & oustourcing, liberal travel regulations etc.
Bad realtionship with Anerica means no more foreign investemnt, no more outsourcing, no jobs, no technology, no american/european/japenese/korean products, nothing. Only Chines Pong-Wong cars & plastic toys & Russian Lada cars & Chernobyl reactors that blow up every week wll be available.