I was alluding to the fact that the "representatives" and the party faithful have more influence on the decisions being made than the rest of us. Whilst all our votes are equal, the value of each person's vote is less than the value of (currently) the Labour party heirarchy and MPs.
As well, you don't get to vote on issues you care about. You get to vote for a package deal of whatever Labour+hangers-on offers vs what National+hangers-on offers. If I prefer some elements of Labour's policy and some elements of National's, I cannot effectively express that opinion. Either I vote for the Labour package, and implicitly support some of their policies that I don't like, or I vote for the National package. Even worse, in a coalition world, often aspects of the package aren't decided until after the election.
And, you don't get to vote on things that have changed since the last election. You hope that, when some issue crops up, whoever is in power will do what the majority of the population wants.
You have an overly simplistic view on how to run a country. Imagine the carnage that would ensue if every-time a decision was made you could just vote by logging on. There are consequences for every piece of policy and legislation that gets acted upon. Why you would think average Joe has taken the time to understand, challenge and consider these enough to be the one voting is beyond me..