A dream man by a woman's standard is man with a "10" wallet. Look at the extremely young and extremely beautiful women that marry old but very wealthy men. Isn't there a lawsuit by a beautiful woman that married a wealthy guy who is now dead who wants a piece of his estate?
While there are a few that engage in marital prostitution, I think that's the exception rather than the rule. There IS, IMHO, a strong correlation between male "status" and attractiveness. Despite all the talk about "trophy" wives, women do like "trophy" husbands as well.
I think that women like to have a guy they can admire, and who will inspire envy among their female friends, and thus increase her status among her friends. It's generally a combination of wealth, social status, wit, and attractiveness, with different women assigning different weights to each factor