Well, now you get into DRM and its kin. Which is really a conflict of values. If party A (the owner/user) has control of the hardware, there are certain things

Well, now you get into DRM and its kin. Which is really a conflict of values. If party A (the owner/user) has control of the hardware, there are certain things it enables, like doing what you want with the hardware you paid for. If party B (the vendor/manufacturer) has control of the hardware, it enables other things like participating in games with stronger anti-cheat mechanisms or quicker authentication when doing a payment. Some of these things have value to only one party, and some of them might have value to both. You're never going to make everybody happy when values conflict. Plus it gets extra complicated because values vary. Maybe one end user cares less about control and more about convenience, and another end user is the opposite.