With their obsession over their absence of "leaders" (evidenced by the deletion of terms such as presiding overseer) and how they're all just followers of Christ, it's surprising that the term "Governing Body" has remained in use so long.
There have been innumerable debates on the talk pages at Wikipedia over the use of the term "leaders" referring to those at the apex of the religion; zealous Dubs have insisted on changing it to "those who take the lead", to which the obvious response is that if they're taking the lead in a religion, they are religious leaders.
And ditto the "Governing" Body: as governors, they are rulers and leaders, no question. But at some stage will their sense of modesty force them to adopt some equally disingenuous phrase to show the faithful they are just followers of God and Christ? To which the faithful will all respond, "Yes! That term was obviously wrong! Jehovah is certainly blessing this organisation!"