Picture a child in a man's body making these decisions, and then it makes a bit more sense.
Children want immediate gratification, and don't have the financial savvy or life experience to think about long term consequences.
I haven't read anything about this, but in a way, the way H treated me corresponded to how he was treated as a child: blamed, punished, and emotionally cut off for misbehavior.
My IC seems to think he's a narcissist, which I'm still trying to work through. On one hand, it would be a relief if it were true, on the other, I just can't reconcile it. I believe his MLC behavior is narcissistic. Maybe this version of him is. Maybe that's the most clarity I'll ever have.