I don't really think what she is doing is "wrong" due to the fact that there is no doubt in my mind that this man knows this woman is probably with him partly because of his money and the security he brings. I'm sure she likes him in some way and thinks he's a good man, but I think both are very well aware of what they got themselves into..
So since it seems that no one is being lied to or deceived then I don't really consider their situation wrong.
As for me though, I could never see myself marrying for money. I personally would feel very wrong for doing so. In a perfect world I would marry for love along with compatibility. But not everyone is lucky enough to fall in love with someone they are fully compatible with. I know that from personal experience
Serafina- I have to comment on something you wrote. "I've been told that smart women marry for money and stupid women marry for love".
You didn't really make it clear on if you agreed with that. Is that something you really believe? Because I don't agree with it at all. In some ways I can understand how marrying soley for love can be somewhat foolish since there are a lot of other factors that should be taken into considration when deciding to marry. But saying stupid women (or even men) marry for love sounds pretty harsh to me.
And I of course don't agree that smart women marry for money. I think that whole statement is kinda ridiculous.