When the issue of the Stamp Act first came up, even though the colonists were furious, Ben Franklin was all about it, and he told Great Britain as much. Hell, he even gave a friend of his the cushy job collecting the new taxes.
Because he was f*****g clueless about the people he was representing and spent most of his time in Britain. When colonists eventually showed up at his house rioting, he must have been just shocked that they were so angry about the Stamp Act. Or, he would have been shocked, but people were rioting at his house and threatening to hang him, so he kind of had some other stuff to deal with.
When you think about it, Ben Franklin was a terrible choice for Voice of the People. The dude managed to be a rich, successful, self-made, internationally jet-setting playboy in the 18th goddamn century, for f**k's sake. John Q. Public he was not. Of course he didn't mind the Stamp Act; if it didn't at all impede his ability to f**k princesses on hot air balloons, (or whatever the 18th Century analogue to the mile high club was), why should he care? Franklin's hypothetical balloon-humping to one side, the point is that Great Britain was blissfully unaware on the other side of the ocean while the colonists steamed and let their rage build.