This is incompatible with dominant funding models: private VC funding requires that the non-failures get exploited enough to make up for the failures. Publicly traded shares make it impossible to prevent shareholders who think that the company could grow to 10x from buying out those who think that it can or should only grow to x. Employee-owned coops will see their de-facto ruling bureaucrats seek to rule a bigger organisation, because that's the kind of personality who rises into those positions. The only funding model that has a chance to stay "happy-sized" (and where it's even possible that claims like "we care for our customers" are not lies) are owner-run bootstrapped shops and they often enough do stay that way. But for the same reason they hardly ever make it into the news.