[PvK]

Since choosing a culture is hard-coded to have no point cost, and can't be modded to do so, and since there is a culture with no modifiers, it makes sense (unless you remove the no-effect culture choice) to balance all the cultures to be worth a net total of zero points. They will still be effective choices when trying to maximize certain traits, but if balanced to zero, will have balancing drawbacks.

PvK