Hope that the U.S. government can relax the visa application for Chinese people

As a software engineer, I serve the whole world in China. I have a good income and my family and friends in China, so I have no intention of long-term immigration to the United States, but I would like to travel to the United States. I really afraid to be refused, because your visa officer too make a person pondering uncertain, I feel they are completely by oneself mood to decide to apply whether they should get a visa. I was very afraid, why a having a good credit record, no criminal record, people will be unclear they refused? I suggest that the U.S. government should improve your visa system and not allow the visa officer to become a dictator.