Probably one of the smartest take someone told me is that a wealthy person may have a business, reputation, relationships, intellectual property, distribution, expertise, or audience that produces money repeatedly.
So if they lose ₦50m but still own the machine producing ₦20m/year, they're in a very different position from someone who receives ₦50m once and spends it.
This is why an igbo man business can burn to the ground today but by next week he will have a fully stocked shop ready to pick up where he left off.
This is how rich people stay rich: