Several of those may not currently be on Netflix, but they have been in the past and may be in the future. The selection rotates. I watched Sideways on Netflix, I'm pretty sure I've seen several of those titles on there before. If you want to have Hollywood's entire back catalog available to you then there is simply no service that offers it -- not your local rental store (if you even still have one), not any streaming service, and not traditional cable/satellite TV.
As the guy who doesn't know that the Academy Award is an Oscar, I think you're being disingenuous when you pretend to care about it. So what, Netflix isn't for you, but to argue that it's a substandard service is just asinine. If you go to a video rental store, for the cost of a couple movies you could cover a whole month of Netflix. Furthermore, for me, if I go to the local rental store, I've already seen almost everything they have that's not a new release (which cost more). Netflix has tons of foreign and indie films that interest me. They're producing original content and some of it is superb (House of Cards).
I don't like to buy movies because I don't usually watch a movie more than once. That's why Netflix is a great deal for me. It's not the greatest service if you're looking for something specific -- but all those things I've seen in theaters or in the past. Sometimes I cancel the service for a while (usually football season) but I've always started it back up again.