It’s a great quote and true if Sam Altman is any example. I don’t know Yarvin but he has pretty much explicitly said and taken actions which suggest he’s not interested in ruling. He’s written many thousands of words why he wouldn’t be a good ruler.
Yarvin doesn't want all the bother of trying to become a monarch (a lifetime quest), but I'm sure you can think of historical advisers to royalty that have made themselves indispensable to several generations of rulers.
But he is explicit in his desire for a ruler.