Many of the fathers of Argentine independence in the 1810s (e.g. Manuel Belgrano and Jose de San Martin) proposed that present-day Argentina (and possibly more of southern South America) should be governed as a constitutional monarchy (and not the republican form that it eventually assumed). One possibility was having a descendant (in whole or in part) of the Incas lead the throne, though there were other possibilities too. If southern South America had actually evolved into a constitutional monarchy the way that Belgrano, San Martin, etc. wanted, would it be better off than OTL (economically, politically, socially)? Worse off?