It is not limited to Africa, only that their own is obvious and crude. If you want to know the true nature of a man test him with power. Power intoxicate and makes people feel on top of the world. People want to accumulate power because they want to remain relevant all their lives and to be part of decision makers. USA is inhabited by millions of people more than the whole west Africa but they still have one family serving as the president. Bush (41st and 43rd) are they the only one family out of the millions, the Kennedy family, JFK serves from House of Rep, Senate and also president, Obama used 2 terms. If there is a way to make 4 terms they will also remain in power. Clinton, husband was a former president and the wife was also aspirant. One part did their own in a civilized way while the other is crude. Most people loves power it is natural.