I propose a radical shift in measure of economic output.

GDP (PPP adjusted) multiplied by the square root of the median number of times per year that a working aged man has had sex with a woman equal to or lesser than his BMI score without paying for it.

Now, I know you're thinking this is irrelevant but in actuality I think we'd see a significant alignment with regards to the QUALITY of economic output when said median is higher but having a higher number will likely reduce absolute value of GDP (hence why you need to multiply it). The overall metric with the multiplication will be a much better measure of economic output to cross compare between countries.