[edoceo]

That measure is so subjective I'd be surprised if it was ever clear cut. You could argue circles with coal, oil, FB, beer, various drugs, fancy rocks. All are double-edged swords (the handle is also a sword (and it's on fire))

[inopinatus]

Indeed not always, and there certainly can be an observer effect, but the answer re. Facebook is very clear cut.

In any case I've found it preferable to "does this corporate entity create shareholder value?", which I must confess I was suckered by some rather Austrian-school economists into accepting as a valid proxy for human advancement and/or happiness in my mid-thirties.