The IQ of a country’s rulers largely determines productivity and wealth. Source: https://mpra.ub.uni-muenchen.de/57563/ The world’s thirty least intelligent countries (except for Haiti) are all in sub-Saharan Africa. Source: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8492613&fileId=S1832427400010045 Colder climates selected for higher IQ populations by imposing more complex survival requirements. Source: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8492613&fileId=S1832427400010045 IQ is the best known predictor of job performance for all studied occupations. Source: http://onlinelibrary.wiley.com/doi/10.1111/ijsa.12069/abstract IQ scores predict life outcomes equally well for different races. Source: http://www.vdare.com/articles/indians-arent-that-intelligent-on-average Feudal Britain had eugenic natural selection for rich individuals. Source: http://www.econ.ucdavis.edu/faculty/gclark/papers/JEH2006.pdf#page=16 Immigration will reduce the average IQ of countries and lead to the collapse of Western civilization. Source: http://www.sciencedirect.com/science/article/pii/S0191886911001073 Intelligence “is one of the best predictors of important life outcomes such as education, occupation, mental and physical health and illness, and mortality.” Source: http://www.nature.com/mp/journal/v20/n1/full/mp2014105a.html I’d say intelligence is pretty important