I think the mobility industry is the most needed a blockchain system.
There are lots of scam, fraud, and overprice repair car or deal used car. A transparent system is needed in the industry.
Blockchain can allow people to record and manage their own car and service data transparent.
Some blockchain projects are trying to implement a transparent system in mobility. I know MVL project. and which project do you know?
Also, in what industry do you think a blockchain system in the most needed?
Hospital systems is probably the most important one. Not only because the medical world needs something like blockchain for purposes of tracking and research and so forth but also medical is the leading important thing in peoples lifes.
You can lose your money, you can lose your job, you can be heart broken and dumped, you can fail your class and basically everything could happen but nothing would be more important than health. So a blockchain system to improve medical world should be the priority and with the way world is running globally now and everywhere having great breaktroughs, it would make the adoption for better treatments much much faster as well.
Instead of google we would have an official blockchain that would show symptons and would help doctors find whats wrong with the patient. It is really world changing technology that could even increase the life spand of the whole world all by itself.