The misconception is that electrons carry potential energy around a complete conducting loop, transferring their energy to the load.
What say you?
I found the following video on u tube that discusses the scenario re the transmission of electricity.
It also involves a giant circuit, a battery and a light bulb. The circuit stretches 300,000 kms long returning to the light bulb 1 metre away, and the question being ( disregarding resitiance) how long before the light bulb lights up...