I totally believe it is sure. Current PhD students told me I should apply PhD in the way I hunt for a job. No doubt, you should also work towards a PhD in the same way you work in a corporation. I think at the end, it's ur skills plus your people skills that set your apart from the majority.
不过确实学术圈就是小圈子,有人说,那些学术会议"the discussants and paper authors are typically freinds, colleagues, or students of the session chair. Session chairs are typically friends, colleagues, or students of the program chair...”