We don't need to go as far back as Iraq.
The Saudis have been waging an offensive war for years in Yemen. Yet there hasn't been a single peep about cutting them off SWIFT, sanctioning their royal oligarchs, freezing their western assets, etc, etc.
It seems to send a message that yes, repressive petrostate dictatorships can get away with waging offensive wars... Well, at least some of them can.