Not true since nu52. Not only does Africa have its own Batman -- Batwing -- but it had an actual superhero team -- The Kingdom -- who betrayed the people.
And there was plumbing and electricity.
Unfortunately, DC had to spoil that by making the entire arc about child soldiers, tossing in "African" themed warlord villains, and eventually throwing away David Zavimbe -- Congolese police officer who was Batwing -- and replacing him with Lucius Fox's son, Luke. So Batwing becomes the son of the guy who builds all Batman's shit and Africa is completely forgotten, except Grodd.