Another clue may come from the meaning of the name Zerubbabel: The name Zerubbabel consists of two parts. The second part of this name is obviously the same as the Hebrew word for Babel / Babylon. The origin of the first part is a bit of a mystery.
Insubordination is generally a punishable offense in hierarchical organizations which depend on people lower in the chain of command doing what they are expected to do.
Death was the immediate penalty of any show of insubordination, and the whip of their taskmasters kept them to their work. Famous Sea Fights John Richard Hale. He had no thought of insubordination in wiring as he did to Washington.