Maybe he is like Goh Meng Seng who can afford to sit down in front of his computer screen all day in his computer shop while equally bored customers stroll in and out.
Not wanting to get personal, but like GMS I bet his wife is the one having a real occupation & career.
If you are a German with a Singaporean SPG working and taking care of kids and still be able sit in front of the computer all day, will you comprain about life in Singapore? I know I won't as life is a breeze.