How are you defining "Conservative," first off? As with the word "Liberal," there are many different meanings associated with the term, and they vary quite a bit depending on where one happens to live.
In Europe, for example, what they tend to call "Liberal" is basically what an American would describe as being "Conservative (i.e. limited government, free market, center rightists/moderates with significant focus on national pride and more traditional values)," where a European "Conservative" would basically be someone like Paleocon (i.e. a Monarchist, who believes in things like State Religions). In American political parlance, by way of contrast, "Liberal" is basically used as a proxy term for someone who supports "Social Democrat" or moderate "Democratic Socialist" causes and beliefs.
Being largely authoritarian regimes, neither of the African nations mentioned here would really qualify as being "Conservative" in the American sense of the word, let alone the modern American sense of the word. Frankly, neither would the vast majority of Roof's personal ideology.