Basic human rights are still denied in many nations. Freedom of speech, association, assembly, movement, freedom from political repression, etc. are not universally accepted.
South Africa during the days of white rule and apartheid is an example. It lasted till 1994. The system practiced denial of basic political rights to the majority non-white population of South Africa, segregation between whites and nonwhites was prevalent, some occupations were exclusively reserved for whites, etc. Despite the odious nature of this system, Western businesses operated in South Africa. This unequal consideration depending on ethnicity was questioned right from 1980s. It is still a major ethical issue in international business.