Wasn't Princess Di just a gold digger?

I admit, modern British culture and the Royal family is not exactly my area of expertise, but I read through the wikipedia article on princess Di and here is what I gleaned from it

Born into a rich family descendant from royalty.

Let a very privileged upbringing

Married a prince

Cheated on him

Went on to have relationships with other wealthy men.

What has she actually done to contribute to society? Why was she regarded so highly? I'm not trying to say she was a bad person or anything, I'm just hoping someone can explain to me what all the fuss is about.
Wasn't Princess Di just a gold digger?
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