When I use the Google for "women aged 40 - 64 earn more than men" I get nothing even slightly resembling what he was trying to use as evidence that income inequality does not exist.
I did find one interesting site on the second page of my search results
http://collegetimes.us/10-surprising-statistics-on-women-in-the-workplace/
^snip^ (sticking to the 4 paragraph rule)
2. Women make only 77.5 cents for every dollar that men earn. This figure comes from data on the 2003 census. Despite this gap, many economists feel that the gap between pay for men and women is due to different personal choices men and women make about personal fulfillment, child rearing and hours at work. Whichever you choose to believe, the reality is that the gap is slowly but surely closing as women become increasingly educated and dual income families become the norm, but this isnt much consolation to those who feel discriminated against today.
3. The more education a woman has, the greater the disparity in her wages. This certainly doesnt mean women should shy away from professional positions, but they should be aware that they may have to battle harder for equal pay. Women in professional specialty occupations were found to earn just 72.7% of what men in the same position earned, and women in upper level executive, administrative and managerial occupations earned even less at 72.3%. If you compare this against the average of 77.5%, the numbers speak for themselves, and this graphic from the New York Times makes it even easier to see.
4. Women may work longer to receive the promotions that provide access to higher pay. One example provided by the National Center for Education Statistics shows that women often have to work three years longer in a teaching position to be promoted to a principal than their male counterparts. Some studies suggest that this is because women and men adapt different strategies when it comes to management and pursuing promotions, yet other studies connect it less to work and more to gender-based biases.
6. Women account for 46% of the labor force, but 59% of workers making less than $8 an hour. What does it mean? It means that many women are taking on jobs that pay well under a living wage. With nearly 16% of U.S. households having women who are divorced, widowed or never married as the sole providers, this leaves many women at a distinct disadvantage and struggling to make ends meet as they dominate jobs in low paying fields.
Funny how I went looking for one thing and found the opposite.