You must be prepared to work in teams. Inter-personal skills are important and worth cultivating. Sometimes you'll lead and sometimes you'll follow, and it's good to know the time for both. You should push diversity not because you should, but because it fosters creativity. Think of the global perspective.
Companies have branches overseas.
Knowledge about the manners and ways things are done overseas is important in this increasingly global work-space. Keep looking and reflecting about the quality of what you're doing. This can be applied universally. You have to understand the societal and environmental impact of what you're doing. Think of consequences and ethics.