One of the things I've always found interesting is that players from the world's powerful and successful countries. Tend not to dive. You don't see the Americans or Germans diving very often.
Yet countries that tend to be economic basketcases have a culture of it. Italy and Spain being the perfect examples. I think its a mentality of the people of those nations and goes a long way to explaining why they struggle in economic terms.
To a german honour is important in life. Whether it be on the football field or in business. Cheating is severely frowned upon.
Look at France, again an ecomonic power. The harshest criticism of Thierry Henry's handball goal came from his fellow citizens with one of the country's own national newspapers saying the side should give up their position at the world cup given how it was earned.
On the other side of the ledger you have for instance Argentina where Maradonas "hand of god" goal is celebrated. Argentina of course is another basketcase of a country.
Just my observations.