I know you're being snarky, but the answer is yes. Once a country establishes a norm that the authority is never to be questioned (under pain of castration), subsequent governments will follow the same path and no one will question it - rather, no one can question it and live to tell the tale. It is not uncommon for colonial laws to be preserved for use against political enemies, so now it's not rubber farmers getting castrated, but journalists who show "traitorous behavior" or an opposition leader that "insults the president".
The only authoritarian countries that overcome that hurdle are those lucky to get benevolent dictators who go undertake genuine reform to decentralize power.
So is that the reason governments in African countries are unstable? Castrated rubber farmers?