Suppose a city is building 5G infrastructure, something like base station. There are three manufacturers selling those devices. The mayor of the city has not decided to choose which manufacturer.
Mark, the CEO of one of the manufacturers is trying to make friends with the mayor.
Obviously, making friends is not the actual aim of Mark and is just the means of selling devices to the city, which is Mark's true purpose.
Is there any adjectives (phrases) to describe Mark? To achieve the goal, he is willing to use anything, even friendship.