There are plenty of ground breaking apps but they aren't making billions of advertising revenue, nor do they have large numbers. I honestly think torrent applications (and most peer to peer type of stuff) are very cool and very useful for small-medium groups but it'll never scale to a billion user thing.
Do agree it's a weird metric to have, but can't think of a better one outside of "business" but that still seems like a poor rubric because the vast majority of people care about things that aren't businesses and if this "life altering" technology basically amounts to creating digital slaves then maybe we as a species shouldn't explore the stars.
Businesses likely don't know a better way because the person selling them software doesn't want them to use an open and federated technology. They want the business to use Slack, with a SalesForce CRM, and then add a JIRA workflow to top it off.
Most of the time it's simply not being aware of what's out there or just showing them a different work flow.
No, what they are describing is workplace democracy: