That's hardly HN's goal, though. HN itself has code and features that encourage some users to vote for content purely based on who submitted the content or what company they work for. HN's certainly not a democratic voting society where votes are treated equally and we're all encouraged to vote purely on the merits of content.
I do like HN a lot, even with that lack of fairness built in to the system. I agree that letting normal users follow each other would make the 'problem' worse (this is what brought Digg down, as a core issue), but it's not like HN sees this as a problem, exactly.