Power has nothing to do with it. Even stripped of it, those that live for hundreds of years tend to have learned ways to get around things in untrustworthy ways. You're like damn snakes.

[Horus could be trusted one second and then betraying everyone he knew for a goddamn pastry the next, but that was a mild example. Should summons not be confined to their objects of choice, most made it very clear they would be up to more than just mischief.]