Nah, I was on an SQ flight from ADL to SIN, many years ago now, and as soon as the plane touched down in SIN, every Asian man stood up, (I think it was a 340 at that time-too old a pooch to remember that detail), but every man jumped up and started opening the overhead luggage compartment, and started pulling things out!
Nowadays, there is the constant annoucement that its a requirement to be seated and keep seat belt fastened, till the plane "has come to a complete stop".
Not to mention the whaacking noise Asian men love to make to clear their throat, and spit out the phlegm...
Or the fact that Singapore MRT has to paint give way arrows or something arrows on the MRT station floors,
Manners can be taught, but its in every culture to "break" it if they can get away with it.