Pays long term dividends for Japan. Their industry remains intact unlike everyone else in the world other than Canada and USA, so they are one of three industrial powers which haven't been bombed, so them become an export powerhouse.
So no reason for them to listen to Deming, or for him to even be in Japan, and they won't have brand new factories to do what they did OTL.
Eizaburo Nishibori, one of the country's post-war quality pioneers, describes in a book* the humble initial encounter to modern quality concepts that preceded Deming's historic 8-day seminar. It was during American occupation of Japan (1945- 1952) when GHQ (offices of the Allied occupation) placed an order of vacuum tubes to Toshiba.
Nishibori recalled the American officers wanted to see a 'control chart' from the manufacturing process being used to produce their order. No one at Toshiba knew what it was. "You don't know a control chart? How do you plan to manage quality?" Nishibori remembers replying, "If we, engineers at Toshiba, don't know it, most likely no one in Japan knows."
Soon after this incident, the GHQ officers began giving lectures to their Japanese vendors, using QC books procured from their Washington D.C. office. Only two students attended at first, Nishibori from Toshiba and Nishio from NEC, with neither of them comprehending much of what was taught.
Later others joined, but a doubt lingered about the usefulness of QC and such seminars. "It looks like statistics, is QC statistics?" the students asked. This was the first time the Japanese ever heard of "Statistical Quality Control (SQC)." Nishibori remembered thinking, "Hmm, is this what Americans are doing now? How do I find out more?"
Meanwhile, another learning opportunity was set in motion by the same American GHQ. It was they who arranged Dr. Deming's first visit to Japan, to teach sampling methods to the post-war Japanese government that was about to conduct its first national census after the war. However, the cabinet level statisticians resisted the new idea and opted for an old fashioned 100% survey.
http://www.qfdi.org/newsletters/deming_in_japan.html
It's likely that Japan and 'shoddy' will limit export success in TTL