My favorite Malaysian statesman. Who else dared to say he would arrest his own mother if needed?

As for his children, I guess they were traumatized by their father's death:

Tun is the highest title granted by the Agong, nothing to do with being a PM.

Ah, I meant maybe they saw how the politicians were acting even before their father's death was confirmed and thus didn't like the ugly side of politics. Maybe you can find out more in one of these pages:

http://www.iseas.edu.sg/okbbook.htm

Hardly any information on his family, they are intensely private. Even when his wife passed on this year there was hardly big publicity save for some retrospective newspaper articles.