That's a really inaccurate generalisation about Africans. Look at Donald Trump as a fine American example of a sexually abusive individual. Silvio Berluscone, the former Prime Minister of Italy, is another prime example of a leader who was involved in a range of sex scandals. The British parliament is also investigating MPs accused of sexual harassment.
RE: Failure to act: Sipho Maselane, African National Congress (ANC) Ward Councillor for Winterveld