work which is what they are paid for.
Ah, but there is your answer. Do they get paid that much? Enough to motivate the worker?
I have never had any problems with permits in Mozambique. They aren't the fastest, but with a little patience I've always managed to get sorted out. And no, I have never bribed anybody.
PS. Doubt anybody from Moz DCA actually bothers with PPRuNe.