I think it goes well beyond simple lack of understanding--if the reports of what was said in the meeting with Nokia are even half true, the Samsung executive was fully aware of the illegality of what he was doing, and was openly flaunting the law.
I would say that it's hard to believe that an executive at a major global company would be so flagrant in his disregard of laws, but there is certainly precedent--the head of the company should literally be in jail. He was convicted of financial shenanigans and the prosecutors requested a 7 year sentence, but the court knocked it down to a 3 year suspended sentence, which was then pardoned by the president so he could help out with the Olympics, and it wasn't long before he was running the company again.
If the original sentence had been handed down, he'd be in prison for at least another year and a half.
It may or may not be a coincidence that Samsung was also raided around the same time as that case related to a slush fund used to bribe government officials. And it's almost certainly not a coincidence that they account for nearly 20% of South Korea's GDP--when you get a personal pardon from the president of South Korea, you obviously have friends in very high places.
Point being, the person running the company is literally a convicted criminal, and one who not only served no time for the crime he committed, but would still be in jail if he'd been sentenced appropriately. That's pretty strong evidence for deep-rooted corruption in the company's executive culture.
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I was giving them the benefit of doubt until the judgement has been passed. I'm very interested in how this pans out as I assume it could have quite far-reaching ramifications; not least for Samsung's US lawyers.