Enron was much more of a real company. It collapsed due to poor investments and cooking the books, but Enron really did own a lot of assets. It would be more akin to Enron if Theranos' tech actually worked, but they were reporting much more profit than they were really getting.

Well, her father did work there.

(Though, in his defense, not in a business unit related to their fraud)

Other than (potential) fraud, they have very little in common.