MM nothing is black or white in reality. What I try to say was. If a judge has his country man in competetion, he may consiousely go for his country man if it's a close call. I still call this a cultral influence, perhaps Joe would call it patriotics. This is human natural. They are not suppose to do so by judg rule. But they are human. If there is no his country man in competetion, than he might just go for his prefered style. Or if he is a really good one, he strictly judge by rules. I don't think this is corrupt judgeing. Sometime incompetent, yes. Corrupt judging only happens when deal was made. IMO.
I'm not saying no corruption in FS judge, it dose happen sometimes, but mostly I saw I would say more of cutural influence.
Also there are cases one does not get so much cutural influence as general in his own country. You know there is always exception/odd chance in statics.