I'm not convinced Google is the gold standard for protecting PII. Data breaches can still happen despite internal controls, and their ad-based business model incentivizes data collection. The "high-level employees getting fired" story sounds like PR - how often does that actually happen? I'm not buying that they're leagues ahead of everyone else in data protection.
Fully private and local inference is indeed great, but of the centralized players, Google, Microsoft, and Apple are leagues ahead of the newer generation in conservatism and care around personal data.