He was speaking to a king, but he was talking about your life
Vidura did not write for posterity. He spoke in a single sleepless night, to Dhritarashtra, a king who already knew everything Vidura was about to say and had chosen, repeatedly, not to act on it. That context matters. The Vidura Niti, drawn from the Udyoga Parva of the Mahabharata, is not a self-help text. It is counsel given to someone who had already made the wrong choices and was about to make them again. Which is why it reads the way it does, not like advice, but like a mirror held up without apology.