That's hardly the only example, and I think it's better to say so-called disruptors provide a service preferable to some consumers.
Many industries create negative externalities and government regulations force them to internalize some of those costs. Hotels are full of loud, annoying people; we stick them in certain parts of town only.
Or many industries are a form of cost pooling. The US decided that we want to have reliable mail delivery. The post office (which does an amazing job as compared to the vast majority of countries) uses the profits from short routes and urban centers to subsidize expensive and/or remote routes. Of course a business would love to come in a cherry pick the profitable routes. We -- rightly -- don't permit that, because we wish to have universal mail delivery and this is how we've chosen to pay for it. Reliable city-wide taxi service is probably similar; I don't know if uber et al are just cherry picking the best / most profitable routes, but I wouldn't be surprised. (And don't get me wrong, I love uber -- at least in sf, it's a taxi that actually comes. Amazing! But still, service guarantees are important, as are flat fares to/from airports, in part to avoid screwing tourists.)
And this doesn't even mention tax revenues; I know HN tends towards the glibertarian but the simple fact is if we, as a society, want nice things someone has to pay for them. A (big?) piece of many of these controversial startups' innovation seems to be thinly disguised tax avoidance (amazon, airbnb).
I actually think disruption tends to be neutral at best. Cities, especially dense urban living, are a large set of compromises amongst many people, and valley companies often have little respect for that.