Well, in the case where most ladies do away with half the wealth the guy possesses, the agreement kind of makes sense, but I don't think that is a thing that should be happening. Some people's wealth is generational wealth; how would you feel if one day a lady or a man just took half of it away? Sad right.
Love is enough for marriage because there is no marriage that's built on love that will end in divorce.
Love conquers all. But the truth still remains that more than half o the consummated marriages of these days are done with legal rights of both partners.