Your total numbers from SE Asia in that chart you compiled are not added correctly.
Taiwan has a labour shortage and a shortage of students. Based on personal observation, I don’t think we have a shortage of rich people hanging around Bellavita Mall.
When looking at the people from western countries coming here, not many are “rich” when they arrive, making business here and become “rich” there are some more
Not all are like Robert J. Pera who recently bought an apartment close to TPE101 If counting him and doing the average then… (maybe he is outside the statistics though as I doubt he is counted as a resident)
But generally, I would agree that Westerners are “richer”, but some of the people who came from India to Taipei, definitely have deep pockets
But back on topic, Taiwan government offers NT$3 million savings account insurance. For many poorer countries, it’s better to keep your shit in Taiwan.
Vietnam only offers NT$60k coverage, Philippines is NT$500k, India NT$175k
Some countries are decent: Malaysia NT$2 million, Indonesia NT$4 million(?!), Thailand NT$1 million
For reference, Japan and Korea are around NT$2 million.
In a bank? Dude…put it in something like a stock or a precious metal or something. Sure have some liquidity but keeping it as currency in a bank account will have its value erode daily.