I wonder how he would comment this study...

- higher IQ men are more likely to get married (because a higher IQ gives them an advantage hence they are more desirable to women), and higher IQ men earn more

- married men have more pressure to dedicate their time and effort to provide for their family, hence they end up earning more

- married men have more pressure and make different career choices to better provide for their family

- this is a small leftover from a past, more conservative, more family oriented society (before women entered the workforce) which valued married men more (because more useful to society)