I suspect that like me, BWV rejects the concept of "relative poverty" as a recently invented perversion of the term "poverty". It appears to me that the term was invented in the west as a way around the politically unpalatable eradication of poverty in the west. A way to try to keep the issue relevant.I wasn't just thinking of absolute poverty.
In actuality, "relative poverty" is just a re-labeling of inequality, completely unconnected to the actual concept of poverty.
That said, you are indeed correct that the term now exists, so its use becomes necessary to avoid confusion.