Menlo Park was it's own corporation with it's own bylaws and constitution. Their constitution required that the directors were in good standing and were elders. That is not the case uniformally, nor for Watchtower. You have to read the constitution and bylaws for each corporation.
And it doesn't matter at least in the US. Courts have ruled on this matter a number of times that GB does not control the corporations and one corporation does not control the actions of another. No matter how much you hate it, it is case law and it would take a dramatic shift to change it.