I lost a game last night because of this sort of shit.
http://www.dotabuff.com/matches/1161763715
I realized carry WK was actually not going to be interested in buying carry items, so I tried to compensate a bit by going QE Invoker (which I don't really enjoy or play as well). I got mine, but we eventually got outcarried for obvious reasons. Was pretty disappointing, but if I was better with QE Invoker, maybe I could have carried that shit. IDK. They said QW Invoker would have been more useful (4 second disarm deafening would have been good), but then we wouldn't have had any additional right-click at all. I'm just not sure how we win with that strategy and those same items purchased by WK.