No offense taken!
I don't deny my views are often on the optimistic, best case scenario, side of things. However, I think that if we're not trying to attain these things, if we just give up on the concept that we can have an non-corrupt government who actually makes an effort to represent the people, then we're never going to make anything better. Just accepting that everything will always be bad stunts progress.
I don't have the sort of faith in humanity you do that people would just do what's right or even necessary without encouragement. Whether that encouragement takes the form of regulations and standards of practice, or tangible consequences for your actions.
And you're right, we all have very different opinions on how things should be done, so it's nigh impossible to have everyone represented. But we can work in majorities based on majority needs.