There's a general obsession on GDP and salary numbers that is a bit myopic. Let's say in country A people drop their kids by car at school, while country B the kids go by themselves at school by foot. All other things being equal, the higher expenses on gas and cars will show up as higher GDP for country A, which will in turn be considered 'wealthier'. But is it really ? Likewise for salaries, the higher number hides what it is expended for, maybe you'll need to expend a lot more to be able to live in a high quality of life neighbourhood.