If you listen to most albums you’ll notice they’ve always gotten top mabanga... aka the first names called on songs. They were extremely influential back in the 90’s-2000’s. Was it predominantly due to their reputation as enforcers/security? … I know some of their crews were responsible for “roughing up” artists and associates on behalf of musicians.

Were they getting mabanga for free/force like we saw with Poison Gorbachev with Wemba in the BBC Sapeur documentary?

I’ve heard their names so much, I’ve memorized some of them:
Maitre Boa, Maitre 150, Maitre Poison, Maitre Kamba kamuzna (RIP), Maitre Bobo Van Damme (who has gone clinically insane), Maitre Goldberg Champion, etc

Guys like Wazekwa, Jordan Kusa, & Werrason are also high ranking in various martial arts forms and are very passionate about it

These guys are legit black belts be in karate, judo, kung fu, Jiu Jitsu, etc.

 there was a lot of "bagarre ya uomo" like kester used to say behind the scenes, and those guys despite at times working with artist X stepped in to defend any artist in case of trouble,while is why maitres were mentioned in albums of rivals
some artists handled a lot of fights themselves,i have heard over the years several times for example that papa wemba had a lethal headbutt lol i was told a story that he got threatened  long ago at a train station in belgium by zulus and he stood up and said ok if you wanna fight lets go and the first one who came received that headbutt and falled hard which scared the rest