An Evolving Image

Last September, Mr. Najib traveled to the United States for the opening of the United Nations General Assembly. He and his wife usually stay at the Time Warner Center when they are in New York, and they did so this time as well — at the Mandarin Oriental hotel.

Image A foundation led by Mr. Low, second from right, pledged $25 million to IRIN, a news agency focusing on humanitarian issues, in 2014.

Mr. Low was in town, too — for a Social Good Summit sponsored by his foundation, featuring speakers like Melinda Gates, Ed Norton and Alicia Keys — and he and the prime minister engaged in a bit of a pas de deux at the Mandarin Oriental: Mr. Najib arrived in the hotel lobby with his entourage and went upstairs; within minutes, Mr. Low followed for what he later described as a “courtesy social call.” Less than 10 minutes later, the two men came downstairs and took separate exits from the building.

Lately, Mr. Low has been emphasizing that he is investing his family’s money and no longer managing money for investors and friends.

He has been broadening his family’s business portfolio, making high-profile deals with the Abu Dhabi government and other Middle Eastern investors. In 2012, his family joined a group that bought EMI Music Publishing for $2.2 billion, and the next year, it was a principal investor in the $660 million purchase of the Park Lane Hotel in New York.

After portraying himself for years as a friend of people with money — and saying in the 2010 interview with The Star that he came from a “fairly O.K. family” — he has started to say that he was born with it himself. Last fall, he did an interview with The Wall Street Journal, which reported that his grandfather had made a fortune in mining and liquor investments in Thailand. The Journal’s account — which said the Low family had a $1.75 billion fortune and called Mr. Low a “scion” — was immediately picked up in Malaysia.

As befits the modern scion, Mr. Low has lately begun trading in another asset class: contemporary art. His entry into the art market has generated buzz both for his youth and for the fact that he has become such a significant force so fast. Last summer, he made the ARTnews list of the world’s 200 leading private collectors.