Spent three years flying for the Japanese on those 747s. They were spotless, and all did wear gloves.
BUT, that was only 50 out of the 200 pilots we had; the other 150 were westerners with their gross hands all over the controls.
They did a phenomenal job of regularly cleaning the aircraft, something I REALLY with they’d do around here.
The Japanese wear white gloves to drive their own cars, they sell them in every 7-11.
That said, at TOC they come off until TOD.