Fraud prevention. If they lock things down, they lose less money to fraud. I think they should just have to suck it up and eat the cost but obviously they don't think that way. Only a small minority even understands and cares about these issues. The money they save by trampling over our freedom is no doubt much higher than the value brought in by us. They will no doubt sacrifice us for increased profits if we force the issue. We have no leverage.

There is no reason whatsoever for a major corporation to not use remote attestation technology. Banks will use it because fraud. Streaming services will use it because piracy. Messaging services will use it because spam, bots. If you're the corporation, the user is your enemy and you want to protect yourself from him.

Governments want this too. Encryption. Anonymity. They need to control it all. Free computers are too subversive for them. They cannot tolerate it.