Africa's sick presidents and the overseas medical treatment

Africa
In many cases African Presidents, Ministers and state officials leave
behind poorly funded health services and structures, which most of their citizens have to rely on, to attend well equipped and expensive hospitals abroad. They are not only mostly overcharged for their unwise decisions but help create badly needed jobs for other economies.
Nigeria President Muhammadu Buhari leaves the capital Abuja for a four-day medical trip to the United Kingdom - his fourth since he came to power in 2015. At any given moment when you expect things to get better; you witness the worse form of the same old practices, by those who made the most noise… What is the problem of Africans and their leaders?