Thanks Diego, I checked out the posting you linked and you're right, he definitely raises other highly relevant issues, probably much more eloquently than I did in my own article.

The mental resource that is being impacted by such things as exercising self-control seems to go far beyond anything we typically define as 'ego' as in self-image and I think the implications are therefore even more wide-ranging than ego-depletion, although he does seem to imply that he appreciates this.