“Should”. But how do you actually move towards doing that? I’ve never worked anywhere that was the case. It might be that there is no way to make that happen if it goes against human nature.
If I could answer that question, I'd be doing management consulting, not software development.
But I think a good first step is to just be aware of it. Many people don't even notice these subtle biases. Once you're aware of them, it's a matter of training yourself to ask the question: is this good for me, or good for the business? Am I doing this because it's good for me, or good for the business?