good article. thanks for putting the list together.
the ID lookup of a person cannot be decentralized. The government will handle all ID lookups in one way or the other. It stands to reason that a Dapp will not become a trusted authority for official or quasi official purposes.
decentralization by itself is not the right answer for everything. A trust deficit is not the primary problem to solve in a coin less blockchain.
Now if we assume that a coin less blockchain can solve the worlds energy problems by using random computers across the world instead of expensive data centers, then ... certain Dapps could be great problem solvers.
trust deficits don't exist today with captive customer/vendor bases. in some of the verticals mentioned in the article (especially insurance), the company knows the customer as well as the participating service provider. in these cases blockchain is just a replacement tech