IMHO women definitely want the $$$ but they don't want to be second fiddle to the long hours and passion for work that is required to earn those $$$. Also, the guys with $$$ know they have the pick of the crop and the high potential for being summarily dumped when a better looking ...... comes along is not an appealing potential event for most women.
You just nailed it. Well-off men can have any beautiful woman they can afford. I'll bet that's high stress for a woman to realize she can be replaced at any time. Like the lady said, you'd have to be an alpha female, so it's a race to see who gets dumped first.