OK Stan,
Of course you're right. Unfortunately Nigerian governments over the decades have shown that they don't want change. Many of the problems here are of their own making and the oil finances only their own corrupt lifestyles at the expense of their people, to whom it really belongs. They covertly encourage many of the problems in order to gain political leverage.
I guess the helicopter companies here just take a leaf from that same book. They don't care about the safety of the staff, except where it affects their ability to keep on flying and making $$$$$ for them.