What makes you believe that? Do you believe that the e.g., algo approaches create a strictly rank orderable list of candidates which actually correlates to their on-the-job impact? Also, why do you think such a thing matters more at scale than when a team/company is small?
From the op -
"We never choose between two candidate, rather each candidate is judged on if we want to work with them or not.
It’s an advantage we have as a small company! "
That doesn't answer my question about why you claim it doesn't scale.
When the company gets big / popular enough, they have to choose between 2 candidates for the same position. All these policies will then go away.
I think it does. But even if not, that's fine! Until we have to scale it, it's an unfair advantage we have.