He's just someone looking for sick validation, and who doesn't know his history very well. It is rather rare for women to have gotten married at 12 or 13 in the "olden days." Unlike today, women got their periods much later (possible due to less hormones in their food, unlike modern days)...
I've only met two women who ever slept with the boss for promotions or favoritism. Both girls pissed me off mightily and I had no respect for their position. As for the rest of the women I know who got promotions, they did it WITHOUT sleeping with the bosses. Not all women do this. And those...