Hmmmm.....your comparison is forgetting one thing that every HEDT enthusiast, except apparently you, would take into consideration. Price!!!! While you may be willing to pay $10,000 plus for your 4 socket Threadripper destroyer I'm pretty sure 99% of people would go for AMD's $1,799 option as it will work out of the box on most software used in the enthusiast level market. Your 4 socket solution will require expensive optimisations to take advantage of all those cores and still suffer from latency issues as those 4 sockets won't be as efficiently linked as Threadripper.
Go ahead and pull the trigger on your "superior" approach and be sure to post your benchmark scores to show everyone how much of a genius you are.