Having an agenda isn't necessarily a bad thing. And altruism is wrongly assumed to be good.
Discussion
Although both of these statements are obvious and can be true, It doesn't change my general point of view.
My point is that your point of view isn't going to lead to a good politician if that's how you're voting. A good politician would have an agenda and wouldn't be altruistic (it's an awful philosophy), in my opinion. Whether or not you agree with the agenda is a different matter and would be the bit that makes it politics. Otherwise, you'd be voting for nothing at all.