Money and finance are the strongest applications where these properties benefit most.
Writing and reading transactions on blockchains is a clunky UX, but worth learning if you want to secure/transmit a billion dollars through cyberspace with no intermediaries or authority saying you can't.
Experimentation and high rates of failure is the nature of software on new platforms. So many websites, apps, games, etc. created for computers will utterly fail, but the ones that succeed end up defining generations (Minecraft, Excel, Google)