Welcome to Startups Weekly. Sign up here to get it in your inbox every Friday. This week, I’ve been doing a lot of thinking about how some of the biggest companies in the world have as much — if not more — power than entire countries. Most countries, at least, have some level of democratic oversight, but that isn’t true in the same way for companies. My question, then: In a world where the policies of, say, Facebook, YouTube and Twitter become de facto standards all around the world, should we have a greater degree of say (TC+) in what…