I think you accurately capture why Google Glass was invented, to help share your life without getting in the way of it.
Although Google Glass in this case is using technology to solve a personal/social/cultural problem I do think it's one of the few times in recent memory to be an actually good solution.
I believe it gives the individuals such as myself and others who do value the living over the sharing a chance to get the best of both while giving those who value sharing over living a chance to enjoy the moment more.
I think I may have said the same thing you said.