You can't blame the guy for wanting to leave.
Firstly Australia isn't his home and he's hardly leaving a place as if it were the third world to come here in the first place.
Secondly, he was given the task of being the face of engineering whilst the enlightened ones above him decided that a few thousand needed to be sacked. If you're a psychopath maybe that's just another job.. Most would do their best to move on elsewhere. I'd like to think that where his motivation lies.