Ultra Magnus was a always take care of business guy, especially when he inherited the mafia from Thunderhoof, who was the greatest mafia boss alive on Cybertron. Sure, those two never got along, but eventually Thunderhoof trusted Magnus. It was a father-son relationship, a better relationship than Magnus and Sentinel, his biological father. Business was always serious. How did you ever get to be near this Cybertronian? By being his assistant.