The MBA was designed for those who did not want to study or could not master economics.(/jk or isn't)

So what if it is? A Master's in Economics gets you diddly squat in the job market whereas an MBA opens doors everywhere. You could get a PhD in Economics and still only work at a university, your country's central bank or at a stretch, the IMF or the World Bank, which are hardly held up as the pinnacle of professional development. And even then they'd only take you if you studied monetary economics.