Double standard or no trust?

Google’s just released a new Chinese input app last week. People are attacking Google for copying existing application. I really don’t know much about the true story. However, it troubles me that most of the major players in China internet market copied well known U.S. or Korean sites to being with their business and no one mention any thing about it. These sites are much more respected in this market than those multinational companies in China. It is true that none of the multinational companies do well in China, at least not in the internet industry. Is it a double standard or trust issue in this market?