No, only moderator reviews are binding. Users with gold badges who make "Leave Open" or "Leave Closed" reviews will not immediately dismiss the review task; it will still have to be reviewed by others.
For the Close Votes queue, it wouldn't make much sense, because the power only works for the duplicate close reason, not for other close reasons; the queue is designed to see if questions should be closed for any close reason, not just duplicate. As gold badge holders don't have binding close powers when it comes to other close reasons, it doesn't make sense to give them a binding "Leave Open" review there.
For the Reopen Votes queue, it may make sense to give gold badge holders a binding "Leave Closed" review, since the close reason is already given as duplicate. (Keep in mind that users who originally voted to close a question can't review any Reopen Votes tasks that come during said closure.) But I think it was left out because it would increase the complexity of the code, since the overall queue doesn't only see questions closed as duplicates, but also questions closed for other reasons, where gold badge holders have no binding powers.