I think this was part of Google's long game all along. Although it seemed to be marketed initially as some sort of lifestyle or social media device, there are striking parallels between the Glass and some of Vannevar Bush's concepts - and really as a very rough prototype. We still have some way to go, I think.
If this was the original goal, they sure took a roundabout way to get there. MS's hololens is/was aimed from the start at this kind of market. Snapchat's glasses are at the other extreme, as illustrated by their marketing campaign featuring mostly attractive naked people:
