Good argument (IQ more important than work ethic), but also possible are: 1) sufficient work ethic may be culturally transmissible enough that genetic selectio

Good argument (IQ more important than work ethic), but also possible are: 1) sufficient work ethic may be culturally transmissible enough that genetic selection pressure is reduced 2) work ethic may be as strongly selected for genetically, but is more complicated to implement via random genetic variation than higher IQ