Which Publicly Traded Companies do you see failing in the future?

With the growth of blockchain tech, we will see a large amount of dapps in this space that will make today's companies obsolete. Dapps will make these "middlemen" companies useless and eliminate their operating/profit margins.

Which industries do you guys see failing when innovative dapps get released and become widely used?
I think travel/booking sites may see a decline. Tutoring/online marketplace companies may see declines due to many of them taking 10-15% fees, eliminating costly intermediaries. With dapps there will be no more fees like that, the buyer/seller will get an advantage.

Maybe even dropbox might fail.

So tell me, what industries do you see becoming obsolete once revolutionary dapps are widely used?

Best answers will get 100% upvotes from me tomorrow once my voting power is above 90% tomorrow.