> It’s only the tech industry where the voice and ego of small companies hold outsized share of voice and love to claim the contrary.

I'd be a little bit careful with this claim:

The fact that small companies can have such opinionated opinions without going bust is to me a sign that in particular for software development (but I don't claim that this is transferable to other industries) small teams/companies do have an efficiency advantage.

Many hypotheses can be formulated why this might be the case, like

- software industry is less regulated

- writing good software as the company's product requires a lot less collaboration between many stakeholders than what is necessary for producing other types of sellable products

- in software, "having a smart, though opinionated idea" is of a much bigger advantage (also for the company) than in other, more established industries

- ...