No, but pursuing narrow national self interest should certainly come second to obeying international law, and perhaps even to natural justice.
See, now I'm confused. I thought you didn't really mind the Russians' actions.
As a practical matter, any nation that puts others before self is pretty much done for.
Cooperation for mutual benefit, good thing.
Obeying international law when it conflicts with one's own, not so much.
I wouldn't want a US soldier obeying US law prosecuted under ICC law for some conflict, for example.