How come nobody has ever heard the term "extreme poverty" as a sensible metric before? Even forgetting the fact that defining extreme poverty as an absolute num

How come nobody has ever heard the term "extreme poverty" as a sensible metric before? Even forgetting the fact that defining extreme poverty as an absolute number is completely meaningless, they had to change the metric numerous times to show a positive result. http://www.aljazeera.com/indepth/opinion/2014/08/exposing-great-poverty-reductio-201481211590729809.html http://www.aljazeera.com/indepth/opinion/2014/08/exposing-gr... Also a country is awarded money if it displays good metrics even if they don't make any sense. https://books.google.gr/books?id=rH5UCAAAQBAJ&pg=PT178&lpg=PT178&dq=world+bank+financing+stopped+after&source=bl&ots=0dpWPwlG7T&sig=uUUqm1zDzxd_0B6ZKF_q39_IyBE&hl=en&sa=X&ved=0ahUKEwjNmNnRgeDJAhUFCBoKHXV-BocQ6AEIOTAF#v=onepage&q=world%20bank%20financing%20stopped%20after&f=false https://books.google.gr/books?id=rH5UCAAAQBAJ&pg=PT178&lpg=P...