Gribowsky is in prison for accepting a bride but, I believe, Bernie's defence was that the money was paid as he was being blackmailed by the man who, Bernie claims, threatened to report him to the UK tax authorities. I presume if Gribowsky had admitted to blackmail then the prison sentence would have been even longer.
It does make you wonder why HMRC aren't having a dig about into the affairs of Mr B Ecclestone, or maybe they are. Presumably, as with companies like Vodafone and Starbucks, a payment will be agreed which is "mutually agreeable", agreeable to everyone except all us poor saps who have to cough up our taxes through PAYE and can't have our salaries moved off shore.