What has africa gained from michelle obamas visit with her 2 daughters and mother?

another historic visit for the first family minus the president, the first lady, her 2 daughters and mother visited South Africa and Botswana for 1 week, its her 2nd or 3rd historic visit to africa to countries that have strong Christan populations all without her husband who has only visited northern african countries. what has those 2 countries gained from there historic visits from the first family+1