You are assuming that Apple is making these accessibility features for capitalist reasons rather than to comply with disability and accessibility legislation.
No assumption is needed, just look at the record. Apple has been putting accessibility technology into its phones and desktop machines for over 20 years, long before it was ever mandated.
Apple has guided developers into using this technology in apps they write. As an example, Apple's VoiceOver screen reader technology uses widgets that are tagged with information about what kind of control they are. Developers can use this same tagging information when writing automated tests for their apps, which is a great way to enable developers to add assistive technology to their apps without making it difficult.
If that's the case, why isn't anyone else reaching this level of functionality? It is clear they are going above and beyond any level required by regulation.
