yes on pve servers we get the buff in outland zones.

edit: but even if you are not enabled and your faction controls the towers you get the buff


And i haven't seen many people even try for towers. Usually if you want them you just enable your status and go stand there while you cap... no one usually shows on my server. In HFP it is mostly horde who control the towers and in Zang it is mostly ally who have the beacons.