I seem to recall a retrospective where they did examine many of the restaurants he visited in Kitchen Nightmares. All of the ones that closed were due to the owners failing to follow the advice given, too deep in the red financially to climb out, or a rare instance of insight where the operators decided that running a food establishment wasn't for them.
I mean, they were all in bad shape and going to fail without Ramsay's help to begin with, so failing to follow an experienced chef and business operator's instructions on how to fix things is a surefire way to seal the business's fate.
The arrogance of some of those owners was astounding. Think of the hubris required to sit in your failing restaurant and argue with the most successful chef in the world about his opinion. Literally moronic.
It was early on in the first American season, that a large beet-red man howled at Gordon that he (Gordon) was "A FUCKIN BLOWJAHB" for telling him (the owner) what to do. To save his restaurant. That was failing.
That guy and the guys like him? They're losers, in the true sense of the word, because they sabotage themselves so thoroughly and constantly that all they can do is fail. Without serious introspection and personal growth that guy is gonna is gonna die of an aneurysm at 55 firmly believing that he was right and the entire world was wrong.