It can and it must. These companies can and should lobby their governments to place tariffs and restrictions on Chinese companies and their products/services, unless the Chinese become a more open society. An uncensored Google in China would encourage democratic reforms. Democratic reforms would bring Chinese labor rights closer to a Western standard, eroding a principal reason Western firms outsource to China. This rising tide would lift all boats except for the Communist Party's.
History is filled with examples of countries which became more free and then grew through openness and trade. These countries became new markets for companies like Google and many others. What we lack today is leaders with the vision and courage to follow this path, both in politics and business.