No, I am not offended, I am just a student of accounting and finance and whatever I have stated in my posts is based on the knowledge and understanding of the famous text books by the US and UK authors.
Just like every other major at any college, textbook and real life can be two different things. Most of what we get here is homework, and even most of that is first-year level classes that over-simplify things much of the time. But real life doesn't always stick to anything learned in a textbook, even when it's based on rules.
I hope you will agree that the financial statements must be useful for the users to make rational economic decisions
True... but do any of your textbooks do very, very small companies where the only user is the person who owns the place? I know of someone who ran a company, contracting jobs, and he kept no books, and his philosophy was that if his bank account was going up, he was making money, and if it was going down, he was losing money. That philosophy of course gave me the shivers, but it worked for him. When he stopped doing the work, he certainly wasn't worried about what to do with his "books." Do your famous authors teach you stuff like that?
I wish you could with your vast experience kindly explain how would you achieve these characteristics and strike a balance between costs and benefits.
That is something each individual company has to do for itself. You have to know first what all the costs and benefits are, and they don't always have dollar signs in front of them.