But by so doing the WT corporations now have a degree, at least legally, of independence from the governing body.
If you are a member of a Congregation corporation, the minute you cease to meet the criteria set in the by-laws, you lose your membership in the congregation and lose your position as an Officer, etc. The same thing here- the minute a WT corporation member / officer steps out of line; they are disciplined and removed, either defacto or procedurally. There is no real autonomy.