Indeed, GG&S is very much focused on the macroscopic outcomes, but I do believe they two topics are interrelated, at least traditionally where they're discussed

Indeed, GG&S is very much focused on the macroscopic outcomes, but I do believe they two topics are interrelated, at least traditionally where they're discussed. The question of why Africa was largely technologically undeveloped was of some importance to Europeans during the slave trade. The predispositional argument was made to justify the practice of slavery, and post-slavery to justify continued discrimination. Similarly, if you go to East Asia today (see: Japan, Taiwan, Hong Kong) you will still see today continued mistreatment of Southeast Asian migrant workers under the guise of predispositional and environment inferiority ("tropical climates breed simple minds" and such nonsense), justified by macro-scale outcomes ("look at all the tropical countries, all of them are a mess, clearly non-tropical climates breed harder workers"). These attitudes are depressingly common. The macro-scale differences in countries is often used as justification for odd micro-scale beliefs.