And like many English words Hacker has several meanings and trying to go back to the 60's usage at MIT is I afraid a pointless exercise just Like King Cnut trying to hold back the tide.
The creative and transgressive meanings of the word "hacker" have been around about equally long and both go back to the MIT milieu. Its first appearance in print referred to breaking into phone networks. (Sorry I don't have links handy but this has been discussed many times on HN.) So it's not true that the word started out good and was corrupted by misunderstanding... but I bet that claim is also about as old as both usages!
Agreed about pointlessness in any case.