Timing, though - those who are *looking* for a way to survive may be more willing to accept help that they might normally reject.
And those who have just had their orbs stolen by the evil empire might well welcome the collective strength of belonging to a larger community (really, the undead should have *paid* those guys to go raiding like they did - they couldn't have asked for a much better setup).
Not everyone is trying to hide.
Those with a sufficiently isolationist mindset (my own lycanthropes, for example), won't exactly be pleased - but, to the extent that reason prevails over fear, anyone with the appropriate skill set should also realize that wasting resources attacking them isn't beneficial.