I can't speak to Mighty's potential, but this essay is quite good.

As one anecdote in support of its argument, I have an acquaintance who co-founded a startup about 10 years ago. Much like Dropbox's early skeptics, I didn't understand how this business solved any real problem that couldn't be trivially addressed in a multitude of other ways.

I was puzzled as the business continued to grow and open offices around the world, and I was astounded when they were acquired for many multiples of the minimal VC investment that they eventually accepted.