Startups like this don't create value.This is a very old hypothesis, and you are shadowing Marx in decrying parasitic middlemen. Value is such a indeterminate notion that anyone could be said to be creating it, but so many activities we take for granted (and which render us service) are parasitic in some sense - taking rent, opening a store of any kind, transporting goods, paying interest, manufacturing goods are all based on taking advantage of a gap between buyer/seller or taking advantage of an inherent advantage of scale/capital (ownership of the means of production if you like). I think it's ok not to add any value other than getting a service/product to someone who wants it and doesn't want to spend energy looking for it. That's not what makes these companies regrettable.
Google can earn $60 billion in revenue per year because they create even more value than that for its users and customers.
Google is, strictly speaking, a middleman just like the companies above, it doesn't create significant value for end users with advertising (its primary source of revenue), that might even be a negative for customers. Google lives in the interstices between customers/customer data and advertisers and the value they create is mostly incidental to their main revenue stream (it is in services like gmail, gmaps, android etc), and designed carefully to ring-fence customers or guide them toward being the end product of advertising streams. Again, I don't think that's bad, but it's important to recognise that and its similarity to the activities of these other companies or others like Amazon or Apple which provide useful services at the same time as making money as middlemen. They could easily earn $60 billion a year by being evil, and we might not even notice if they were at first because we're too busy enjoying the nice free presents.
The problem with the companies in this article I think, and any other company gone bad, is that the interests of consumer and customer become misaligned to such an extent that the company no longer serves its customers in the sense of seeing to their needs, but in the sense of serving them up to others.