That just seems to feed the point to me. Google was competing with organizations particularly created for a new tech market that didn't exist before them. NYC library was maybe the largest player available to consumers? (Before the emergent search tech like alta vista and yahoo that Google disrupted.)

Stripe is a payment processor with the most disruptive automation, competing with other payment processors older than the web. Every industry will be shrinking in people per net work, few industries are new things (at least for the public) enabled by automation.

If we want to call all disruptors tech companies, why not also call the old companies that transform to compete with them tech companies too? Then every industry is tech. But really it is the opposite, tech as it ages becomes regular business that is more dependent on trademarks, relationships, etc, so some things we consider tech from recent decades are less so now and companies that stay primarily in them are more like old industry than tech companies that compete for the newly emerging fields.