All the happiness in the world can't buy you money.
The reason movies present this image is because it largely (not completely) reflects what people want to see. Evolution continues, and while we have different preferences, it's foolish to reduce yourself to cliche and say beauty is in the eye of the beholder. Cockroaches (presumably) find other cockroaches attractive. Flies love eating ****. Does that mean it's all hopelessly subjective? No. Cockroaches, flies, and homo sapiens have hard-wired attraction triggers. These truths are general, not absolute.
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Another point on money. If a female earns 100k+/year, one might guess that, because she's financially secure, it won't matter how much money a man makes. And that guess is mistaken. It's relative. Wealth is sort of like height: women (generally) desire a mate who is taller & earns more money. This does not make them "gold-diggers," but it does indicate that income matters.