The idea of the school of hard knocks is used for the people who have learned from experiences, whether good or bad. By combining these aspects, along with the others, it helps to receive information from several angles which makes managing or decision making easier. If information is power , the diverse company , which brings more information will be King. By staffing your company with people from different cultures and races you only stand to better your company. It does require extra effort in the initial training but the benefits far outweigh it.
Cultural ethics are a major influence on peoples decisions and the way they think and act.
In the United States, businesses are low contact where all the meaning is in words, whereas many Asian countries are the opposite. Instead of words, gestures accessed meanings. By moving the wrong way someone can offend a potential partner and do damage that can never be undone. If only they had the information about the culture it could have been avoided. What better way to get the information than first hand from an employee and let them handle a certain group of clients.