A few thoughts:
1. Men don’t care how much money a woman has but only how hot she looks, and most women that are millionaires are not that hot.
2. Prenuptials are not worth the paper they are printed on, if you’re a man the family courts will financially rape you no matter what legal hoops you’ve jumped through to protect yourself. Still worth a try but don’t count on it working.
3. Most of these Silicon Valley Millionaires are nerds that made it big (like the CEO of Facebook) and have no real experience with women and so will most likely get taken to the cleaners by the gold diggers trolling for them.
4. For women status matters so no surprise that they do not want to “marry down” no matter how hot the guy is. For these women a life with many cats is in thier future.
Good grief. Hot would be one of the last things I'd look for.
+1 to point 1 - “Arm candy” and “trophy wives” come to mind.
Lulz for point 4 and the many cats in their future.