Gordy, I'm not saying that the circuit breaker should be pulled, just that it is almost always pulled when I preflight the aircraft. Pulling circuit breakers in flight is, IMO, not quite the same as pulling them while the engine is not running. I don't often do it, but it does seem to be common practice.
@Aucky: Gordy pretty well covered your question. The right boost pump is off if the battery is off, but the left is wired differently. Rube Goldberg obviously worked very closely with Bell, especially with the fuel system designers, and most especially with those who designed the one on the 412. I suspect Rube himself did that job.