[lazerwalker]

Google's business model, in broad strokes, is selling user data to advertisers.

Apple's business model, in broad strokes, is charging consumers premium prices for hardware.

As long as Apple thinks the market values user privacy, they are economically incentivized to provide privacy- and security-focused software features that get people to buy their hardware over Android equivalents.

Is that an irontight guarantee? Of course not. Is it a (current) alignment of incentives that means Apple is categorically more likely to protect privacy than e.g. Google? Absolutely. That's also played out so far in practice, between things like app security sandboxing and Apple's historical unwillingness to help law enforcement decrypt encrypted backups — see e.g. the San Bernardino shooter case.

[Jyaif]

More accurate description, with fewer words:

Google's business model, in broad strokes, is selling advertisement space.

Apple's business model, in broad strokes, is selling hardware.