Selective outrage

Why should citizens or the government of the United States be concerned about Jamal Khashoggi, a self-exiled, independent, dissident journalist who lived in the United States but was a citizen of Saudi Arabia and was murdered in Turkey by citizens of Saudi Arabia? Why is the United States condemned by the media for not taking some action against Saudi Arabia? Why are other counties in the region not condemned for not acting against Saudi Arabia? Could the answer be as simple as American politics and the media?