[jqpabc123]

But the mis-aligned incentives are there for Brave just as much as they are for Google.

No they are not.

Brave exists as a privacy-centric alternative. If they start violating user privacy, it would remove all incentive to use their product. There would be no reason for Brave to exist. It would be marketplace suicide.

Google exists as a privacy destroying organization. They can't hide this fact and they have never really tried to. And they can't stop now because their reason to exist would likewise be gone.