Each decision builds a foundation of a status quo, defined as the sum total of the "this is not evil" decisions and designations made in the past, which constitutes a form of momentum (especially among those who don't want to rock the gBoat).
This momentum is a force that affects the value system of the company's implementors and gating roles. It boils down to "bad things can happen even if everybody thinks they're working for good." Myopia becomes a bigger problem the older a company gets.
But for the reasons i've explained, it does not do this, and this is not how it operates in actuality.
Maybe if the company had no turnover, no leadership changes, no nothing you could make this argument, becuase it would always be the same people.
But it's not the same people, and even where it is, nobody sits around and asks "in light of us deciding this wasn't evil in the past, is it now okay to do X".
That's not the question to be answered. It's not "is this evil in light of us having done similar things in the past", it's "is this evil".
Don't get me wrong - The past is evidence, and data, for sure. It would be stupid to ignore reactions, viewpoints, etc.
But the world changes, decisions look different in hindsight, society changes. If there was no evolution of thought, you would be right. But there is.
This momentum is a force that affects the value system of the company's implementors and gating roles. It boils down to "bad things can happen even if everybody thinks they're working for good." Myopia becomes a bigger problem the older a company gets.