That’s more a component of development. When you’ve been richer for longer you have less people doing scams.Being good at enterpreneur and merchant aren't a capability.
Oversea viets are known as scroundels and untrustworthy and usually get background checks in the mainland.
Then again, it's the same for oversea chinese.
Again, it's a skewed perception, what American think as advantages aren't necessarily true for what actual Asian mainlanders think. We value harmony, politeness and honesty over being a capable merchant.
I'm talking Asia as a whole tho, and S. Asia is a big part of Asia.
Then again, I should include Russia in that list of nation, and Vietnam is indeed supportive of Russia.
Being polite gets you well liked but it doesn’t determine how competitive your economy will be. Japans fall in rankings all echo my long held observations.