Large companies usually don’t act with a single voice. The iPhone is what stopped IE’s ability to dictate what the web would work like — not entirely without help but it’s what forced companies to treat support for other browsers as mandatory rather than nice-to-have – and WebKit was a huge win for open source, eventually including Chrome.

That doesn’t mean that things like Lightning connectors don’t also happen but in the context of the web Apple has generally been helpful for fighting monoculture since it used to be a huge threat to their continued existence.