It seems as if you're confusing the terms "organised religion" and "sect",
The prophet pbuh was very organised, he built a complete state in 13 years which is the foundation of the worldly aspect of Islam. He pbuh also made laws by which the citizenry was bound, and so did the khulafa after him
making it a completely "organised" system.
It is true that he pbuh didn't follow any madhab or sect and didn't instruct us to, but the scholars you mention were very learned men who spent their whole lives studying how to implement the teachings of the prophet pbuh and there is much to learn from them.
They would come across a new problem, analyse it, and use their extensive knowledge to find answers.
I personally don't feel bound by any madhab because I know that I won't be able to throw the blame on them on the day of judgement, I do however read up on their opinions and work on that, and I consider hem to be worthy of much respect for the hard work they did for the deen.
Yes they were men who did make mistakes, but they definitely acquired more knowledge than me, if someone can do better, i'm happy to read up on heir opinions too.
Let us not be fooled by puppet dictators in power who seek to control us and legislate kufr laws for us while we blunder along haphazardly and in a disorganised fashion without uniting and working together, because they know that this religion cannot move forward without us setting up an organised system via which we can re-claim the legislature and set up that way of life in which Allah is the law-giver, not Obama or elizabeth.
Peace.