Self-sabotage: The science behind knowingly engaging in harmful behavior

> And the behavior of those participants in the Compulsive category couldn’t be explained away as laziness or poor motivation; it was a failure to integrate knowledge into action. The researchers made a point of asking what was behind those choices.

“We asked participants what they thought was the best strategy, and they often described exactly what they were doing – even when it was clearly the wrong choice,” said Jean-Richard Dit Bressel.

That sounds very much like a symptom of NPD.