I'm more afraid of the damage he'd cause in a year (let alone 4), yes 99.9% of politicians are corrupt, yes Hillary would be more subtle about it, but there is a greater danger with Trump, one that isn't just political, if he wins the bigots will have additional reasoning to self justify their actions, after all if the POTUS/recent POTUS supports your actions then they have nationalist (modern definition of Patriot) backing, THAT is what I am most afraid of, the people who think they have the right to tell others how to live their lives more or less getting that right confirmed by the President. The biggest power of the president isn't anything political, it never has been, but the influence on public opinion, both foreign and domestic as it relates to the nation, and in the hands of an extremist, in any country mind you that is FAR more powerful than any law or executive action.

As for representation, it isn't perfect, no system ever is, has been, or will be, we are far too populous (and busy) as a society for direct democracy on every single decision to work, especially when the opinions of the public vary so wildly, do politicians need such big salaries? probably not. Should there be more oversight on three letter agencies and politicians themselves? Definitely. Is it possible to make everyone happy? Only in dreams or with LOTS of drugs. But look at the recent supreme court ruling on Gay Marriage and tell me they aren't trying, and in the end that's all any government ever can do, is try to do what's best for the people. They wont always succeed, and when they do, over time many of the solutions of the past present unforeseen problems in the future, they are only human. There has been and never will be a perfect government but for its faults, the one we have isn't that bad, okay there's corporate lobbyists that mess up a ton of stuff but all in all, we get more representation than most countries.