Those who don't have the time to actively do something or help the tribe out should give up the account and let a duke find them a new owner. It's a pain to have people never doing anything and barely replying, to respect the tribe you're in then the account should be given a new owner. Or you'll go full defensive and support unless you can send nukes when requested. That's my view of it.
Of course there's always the possibility like I recently got. The owners brother couldn't bother to tell his brother in the next room to login when he's been red for long(probably had a fight with him). So the account went grey. THere's nothing that piss you off more these issues, specially since you're paying the premium.
The new owner of the account was supposed to do a lot but never did anything either. Last time when I demanded an improvement I wasn't allowed to sit it. But an active owner is always the best case, or you got to find a way that aids the tribe. However you can always get the wrong guys.
Another good example is Adhwa and Nayazu, both owners blinked red. Both are called and both says that they were going to login.Both goes grey.
When an inactive help out it's one thing, however when they never reply then it's another.