I actually use this conflict as one of the basic aspects of one of my alien species.
Essentially, the species originated on a brutal world where basically Everything Is Trying to Kill You
... they themselves are (relatively) squishy and weak, but they had two advantages: intelligence, and team-work. Because they're primarily carnivores, they're prone to aggression, and it means that slight disagreements could quickly flair up to break up the group: divided, they'd pretty much all die horribly. :/
So, any individuals that disagree with the group break off and die. Eventually, the very concept of disobedience and even having a different opinion
to everyone else becomes both taboo and highly uncommon.
Their morality becomes entirely a question of 'whatever the majority wants', ambition and greed are seen universally across their cultures as bad, even in small quantities, and they actually feel guilty if they find out they have a disagreement with the rest of the group.
As a result, they stay unified and advance enough to keep their numbers up despite everything trying to eat them.
Now, what does this mean? On the plus side, they don't have wars, crime is virtually non-existent, and everyone is both polite and friendly to each other.
On the downside? The wind up without variety of cultures and groups: as soon as one pretty large clan decides that their ancestors want them to 'erase' all of the other clans for whatever reason, they promptly go to the neighbouring smaller clans, tell them to abandon their entire culture and history...
...and they just do
, without so much as a grumble or a shed tear. The members of the smaller clan, from elder to young child, feel a biological need
to obey what the bigger clan tells them to do.
I've forgotten where I was going with this, I'm kind of hoping this is relevant to the discussion, or something?!