Neither of my Nigerians came with "a sack full of cash" as you you so nicely put it.
We (the Company) type-rated them free of charge as was the norm in those days.
What I am trying to say to you, is do be careful about tarring everyone with the same brush.
My man came from a fairly humble background (his father was a fireman) and he got to where he got by his own balls and hard work.