So many of these 'amazing' businessmen are usually found to be nothing more than paper tigers. Branson has done nothing for many years, a lot of the business that have the word Virgin on them (Virgin Radio, Virgin Media, Virgin Money, etc.) are not owned or run by him. People have paid him for the use of the Virgin name, and nothing more.
Tony Blair had a businessman called George Simpson as an advisor. Simpson managed to bankrupt GEC Marconi which had been one of the shining lights of British industry. He also was a big fan of Fred Goodwin, Cameron got Green in, Harold Wilson had Kagan, Miller, Thatcher had Ernest Saunders and Jack Lyons etc.
Come to think of it, I'd be more suspicious of business people hanging around politicians than the other way round.......