Ummmm....HUH?

Would someone explain to me exactly WHY we vote?

I was thinking that one of the reasons to vote is to elect who you want to run against the candidate from the opposite party for President and to elect a President in November.

Now, back in whenever-it-was, the people of the State of Ohio choose Hillary(56%) over Obama (42%). Okay, fine and dandy. (Well, not really, but whatever.)

Now this is where I need help: In all states, there are 'delegates' and 'super-delegates', and these folks choose the candidate they want to represent their party come November. It was just announced that Ohio's super-delegate, Rep. Joyce Beatty, the Democratic Party's leader in the Ohio House is endorsing Obama!.

I also seem to recall that somewhere back in history that one candidate took the 'popular vote' (the people spoke!) but the other took office - Kennedy perhaps

With that said, WHY is it exactly that we vote? If these 'delegates' and 'super-delegates' (and the Electoral College) are the ones that ultimately decide the 'winner', WHY should I bother to vote?

Where was it I read "A government for the people, by the people...yada, yada, yada..." It's appearing to me that my 'voice' in government is not really my voice or your voice at all!