You do what is best for your group. If the competition presented by an inferior group, whether it be numerical inferiority or skill-based inferiority, does not impede your own progress sufficiently to make an alternate camp a better option, then yes it is in the best interests of the group to overtake the inferior group.
If it is better/easier to just find an alternate camp, that is the best thing for the group. It's not a matter of being malicious, it's just a matter of weighing all possible options and doing what is best for you and yours.
I'm being straight up. Generally, it's just plain easier and better overall to take an uncontested camp where you won't have to deal with fighting over monsters. Fighting in these situations is just stupid. However, there are times where either the alternatives are terrible, or the squatting group presents such a minimal threat that competition is the best route.
No group has a sovereign claim to any one camp or monster for the sake of being there first. If another group wishes to compete, they have the same opportunity available to them to drive the invading group out. If they win, they win. If they lose, they lose. Either way, it's no one else' fault.


