Why can looking at Development help give a Greater Picture on Standards of Living

-Growth and Unemployment don't tell the Full Story, and it's better to see the Economic Development -This means finding the Level of Social and Human welfare, which is seen as the Quality of Life -Economists need More Indicators therefore than just Economic Growth, Inflation and more. This becomes evident when seeing the Difference between the UK and Niger. A Rich Developed Nations vs A Poor Developed Nation