I did have a very rich boyfriend back before I met DH and although it was fun to be treated to nice things and taken to special places, it wasn't enough to maintain the relationship as I didn't love him.
DH and I fell in love very quickly nearly 20 years ago and have struggled financially for the last 7 or so, since I was diagnosed as being very sick and was unable to work. Happily, I am recovered enough to earn again now, but without the love, we wouldn't have made it through those financially difficult times.
So I think love is infinitely more important than money - it would be wonderful if DH and I had enough not to have to worry about it, but as long as we have each other, I'm happy 
Our main aim with our daughters is to ensure that they are loved, we feel it's the most important thing in raising our children as it helps them to feel secure and gives them a safe family unit that they can trust and rely on. They know that nothing and no one will stop us loving them, no matter what and we hope that this gives them the confidence to venture out into the world knowing they will always have us on their side.
If all we had to offer was money, not love, I suppose they would have the security of knowing that they'd never have to worry financially, but we feel that growing up with parents who love each other gives them an example of the security and happiness a healthy, loving relationship makes possible (all 4 of DH's and my parents have been divorced twice - one parent 3 times). We feel hugely lucky to have one another and never dream of swapping our relationship for financial security.
If someone had never been in love and had either spent all their life struggling financially or was born to wealth and was contemplating marrying for money, I would understand why they might be tempted, but I think once you know what it feels like to be in love, you realise that it's never going to bring you the happiness you get from being with the right partner.
Interesting question though OP, I'm intrigued to read what others think!