Take the Samurai for example, so much hype and myths surrounding the "Samurai", and the Japanese helped propel a lot of these myths during WWII to make their citizens more willing to fight and die for their country.
It'd be like scholars 1000 years from now, looking back at my high schools' honor code and thinking that all the kids of the day were never late for class, never tried smoking or alcohol (or other harder drugs), and always did their homework.
Also LOL at Gunnery Sgt trying to use a sword, he just hacks with it, and doesn't "draw" (slice) when he cuts. They're swords, not axes. I hope Lamerina is just joking with that video.
http://thegoldeneggs.wordpress.com/2009/11/26/the-samurai-myth-versus-reality/Form the article (sorry Benkei):
The truth is, Benkei probably never existed. He is more likely the fictive work of romanticizing minds in the 15th century who wished to embody the virtue of loyalty that was becoming a part of the idealized samurai of that time period.