The same can be true of ethics.
I disagree that professional ethicists aren't needed in an organisation like Google though. Just as security should be lived and breathed by every developer, you still need some experts to consult when things get gnarly, light the way when you need many years of study to understand the concepts, and spot things that laypeople would miss.
The large language models Timnit was studying are a great example of this; people like her were (and are) needed to help the engineers understand the breadth and scope of the issues. Everyone in the org having their hearts in the right place doesn't replace expertise.
Instead, the quote suggests that the separation is unnecessary, and that elevating some people to specifically look at ethics is bad since it's everyone's job
> Ethics in AI should not be so convoluted as to require a separate profession; ethics should be distributed across an organization, flowing through and between individuals so that conversations of design naturally arrive at ethical questions. More crucially, everyone should have the tools to speak up and suggest improvements, so that no one person or set of people hold the keys to building ethical technology.
https://linguafranca.polytopal.ai/handbook/agency