It's clear that he truly doesn't know any "old fogeys from Taiwan," because then he would know that they are not, as he imagines, loaded with crates of gold and jewels.
顯然他是真的沒有一個「台灣老頭兒」，要不他會知道台灣老頭兒並非他想像中金銀珠寶裝滿箱地富有。