Because the bit thats import is your context (ie email, credit card, privileged data), not the place where you do the execution.

Having a separate machine thats isolated is all well and good, but that doesn't protect you from someone convincing your openclaw to give them your credit card.

It doesn’t have to have a credit card number to be useful. I don’t need it to purchase anything. Mine has its own icloud and google account. I can share calendars to it. You can donate same with email or shared lists. There are ways of using openclaw without yolo’ing all your secrets.