1) There are. 2) They aren't so visible (here) because the VCs don't have a bikeshed moment where they think they know how to do things in that market and thus

1) There are. 2) They aren't so visible (here) because the VCs don't have a bikeshed moment where they think they know how to do things in that market and thus aren't tossing money at it. There are far more unicorn possibilities in other (bikesheddable) markets, so that's where the startup funding flows. 3) Inertia. You're dealing with entire industries and governments and etc that are entrenched, more or less conservative/bureaucratic/regulated, whole lot of nepotism and similar effects, where you really can't just make it up as you go and PR your way through it. Disruptors are killed or acquired/disappeared pretty quickly.