GDP doesn't mean or measure anything concrete. Especially the nominal GDP. Your economy might be just banking services and for average person has really tough times making ends meet thanks to massive cost of living problem, but hey all it makes few people very wealthy and the big number go up in terms of USD. You can't even fight a war because all manufacturing got outsourced because local labor is unaffordable and the military is dependent on existing stockpiles and there is no idle manufacturing capacity to ramp up in case of emergencies so you don't even have power projection or "bigger stick".

Then some middle income country with healthy manufacturing base, natural resources, growing middle class, own army with it's own arms supply chain for the basics, but it ranks bellow you in GDP.