I understand that currently (and maybe because you are "only" 75 employees) it feels fair for everyone, or people are even feeling bad about it. Also it sets the bar high when hiring someone, I get that.

But what if in a year or two a person is not so great anymore? Just by my own past work experience at 2-3 companies, there were always some colleagues that were definitely not good at their job (and this was pretty much common knowledge, multiple people had the same opinion). Maybe they were good at the beginning, or not even then. I would have felt it to be super unfair for them to get the same money, or the same salary bump as me.