He was also a criminal and an opportuist, and by the laws of his King, a traitor.

John Hancock was a wealthy shipping magnate, who made the bulk of his money illegally by smuggling. Many colonials were smugglers, Hancock just happened to have a flair for it. Because the ever-tightening British policies that came about after the French and Indian War were aimed at his sort, he wholeheartedly took part in the call for Revolution.

Hancock smuggled glass, lead, paper, French molasses and tea. In 1768, upon arriving from England, his sloop Liberty was impounded by British customs officials for violation of revenue laws. This caused a riot among some infuriated Bostonians, depending as they did on the supplies on board. In the late 1760s, he was formally charge with smuggling and although certainly guilty, his attorney was able to get Hancock relieved of all charges. The lawyer was Sam's cousin, John Adams.

It was a well known fact that John Hancock had made his fortune through smuggling Dutch tea, which was cheaper than East Indian tea. A commonly forgotten fact is that East Indian prices were cut before the introduction of the three pence tax, in effect making its price, even with the tax, cheaper than Hancock’s tea. Presented with this information, many loyalists did not wonder at Hancock’s involvement in the boycotting of East Indian tea and indeed, the entire war.

Patriots my ass. These guys were just capitalists trading tea, not peddling pizza. They would have fought for the other side if they had gotten a better deal from them. Proof enough for ya?

http://www.boston-tea-party.org/smuggling/John-Hancock.html