Ok my current character is a nord stormcloack warrior/archer dragon born and companion. I'm deciding whether to help the reiklings or the nords. Now I know it seems the rewards are better for helping the reiklings but would a "true" nord really do that?

I did start helping the reiklings first and then I heard of the nords so I would be turning on them. I suppose one reason to kill the nords is because of how shamefully weak they where in letting themselves become overun, but is killing them unjust for a nord? I like to have character and reason behind my characters not just do everything thats cool or whatever

Thanks!