Human translators have much more command over the language. A language is not just words and sentence structuring. A language also reflects the culture and used slang and idioms that might only be relatable to people of a particular country. Using a human translator thus can help you derive the right context from the source document and translate the content using equivalent terms in a different language. Translators are creative people too. A lot of businesses use human translators to make ad copies, make ad slogans, or make subtitles for a film or series. Surely, a machine would do it much faster than a human translator, but a human translator gives you maximum accuracy.