No offense, your idea is ridiculous. Doing it slowly more than likely would have sell-out Uncle Toms to spy on the Wakandans and steal the vibranium to these colonizing leaders. Patience is not an option, especially when you know you have the most superior weaponry and equipment. You have to catch them when they least expected with their pants down. The ONLY thing that these international government could do is ask for the Avengers for help, and they're split up.
Also, Killmonger is the type of person who wouldn't even allow c00ns admitted. He stated without remorse that he have killed black people in his past. Killing c00ns who step outta line is nothing. His plan was to send the weapons to the WAR DOGS who were in position. So, it wasn't going to be directly to the sellout c00ns, but those who are ready to actively fight to overthrow the governments. And Wakanda's tech is mastered to where it is impossible for people to invade. They actually have a FORCE SHIELD. And under Killmonger the country is still in secret hiding. Under T'Challa is why the world is revealed to what Wakanda really is with full invitation for all to come.
But to say Killmonger be patient only means as W'Baki stated, for the rest of the world to catch up. They have the FULL ADVANTAGE... why not use it? Who would stop them except people within? And the only reason for that was because Nakia stole the herb that Killmonger was trying to burn knowing it could be used to have a coup to overthrow him.
its a movie. Besides I dint know what you're really talking about. Dudes who take necessary evils or african politicians?
. Who knows what the government/Stark have been doing with the Alien tech behind closed doors. 
