HomeSteak wasn't trying to say they did, they're mercenaries after all. Just saying that looking at what they've done while ignoring 100+ years of murder, environmental destruction and pillage in the region.
France has sent troops and bombers to Cote d'ivoire Mali or Chad regularly whenever people complained to loudly that their people saw nothing from the resources extracted from their soil. The entire country Niger is literally run by a French company called Orano, people there get sick and die from working uranium mines with no protection gear.
The whole region has become a hotbed for human traffickers in both directions - people taking money from Africans from the South trying to get to Europe and people taking money from Europe to prevent Africans from reaching its borders, in some cases it's the same smugglers even. The EU pays them millions to catch people on the way to the African North coast, bag them and to release them in the middle of the Sahara to die. So yea Russian mercenaries are no saints but they're not even 1% of the death machine that is Western interests in the region.