Comparing yourself to Da Vinci?? Here's a quote for you, and could be about you:
"There but for the grace of God goes ... God."
The first general-purpose computer was a colossal ( ) kludge. I guess we should not have read Luftwaffe and U-boat messages until the theory was right and the machine matched the theory. System R was a kludge. Indeed, every modern RDBMS is a kludge compared to Codd's 13 rules. By your lights, they should never have been released, as they certainly weren't theoretically up to par. I read Codd and Date for theory, not you. My loss I'm sure.
You -- like Da Vinci, btw -- have royal benefactors and thus can luxuriate in theory all you want. Some of us have to get actual, practical work done. We're not gods and don't pretend to be. We use theory as much as we can, and admittedly know less than true theoretical experts, but aren't allowed time to make everything perfect.
Btw, believe me, you are the only one on the planet obsessed with COBOL, and particularly with it being some type of insult. I dare say that many companies wouldn't be able to pay you your bloated amounts without COBOL in their history, and maybe even in their present.