Work is scarce, and wages so low that all they do is live hand to mouth, the concept of planning a better life is pointless because it is out of reach.Sometimes I feel like I am dealing with a whole family of autistic people, ike the character Dustin Hoffman played in Rainman. How much is a Nokia $10, How much are Guess Jeans $10, How much for an Aston Martin... $10.
How much money does bill gates earn a minute $10... and how much does ate's husband earn a minute...$10
Excellent observations of the situation you are facing. It's clear that like so many, your outlaws have no concept of the real and relative costs of things.
Together with your wife, you may have to respectfully sit the ones you care about down and try to explain using practical examples.
Also try in a none reproachful way, to explain how their misunderstanding makes you both feel and how important it is to you that the understand the true situation so that they themselves are not disappointed or hurt because of their misunderstanding and expectations.
Good luck!
Toks