We already expect people to follow some of the same principles, I'm just changing/adding to those principles. For example we already expect people to view killing as immoral(to a certain degree...), to tolerate other people's freedom of thought, to "obey the law", etc.
Yes, but those are very basic and don't intrude on a majority of people's lives, because we have authority in place to allow for diversity without things getting out of control.
Your society, with its lack of authority, is in an extremely delicate balance, and your insistence on the destruction of individualism and a total commitment towards society at large seems to imply a very massive amount of conformity in order to work. No longer will there be individuals, free to do as they want, but rather, just this massive, amorphous blob of "society".
That type of society actually scares me to be honest, less of a utopia and more of a dystopia.