"We want the best talent."
"No we don't. We want the to remove bias."
"Isn't talent more important?"
"Removing bias is finding the best talent."
That was like reading a conversation with an AI chatbot. We all agree we want the best talent then, yes?
So asking whether removing bias is "more important" than improving decision making is a non-sequitar: removing bias is a tool towards that goal. In a sense it's "less important" because other tools might do the job better, and in a sense it's more important because simply desiring to improve decision-making does nothing without tools to implement that desire.
It's easy to solve for one variable; beyond that, one has to balance things so that primary goals (hiring capable and personable talent) are still achieved.
That's not the point though. The point is to remove bias.