Your answer amounts to "Yes, both those things exist to the detriment of the user, but they were requested for the benefit of corporate app writers, so it's okay that the device the user supposedly owns obeys someone else."
Except these features are not to the detriment of users. If apps were not region locked at the store either they just won't be in the store or they will implement the region lock themselves. Similarly DRM is seemless for users. The users get the same media watching experience they expect, but the content is securely played to stop people from making illegal copies.
>the device the user supposedly owns obeys someone else
The user may own the device, but they don't own a movie that the device is playing. Your device isn't obeying someone else. DRM is a feature that lets your device handle other people's content in a safe manor.
