There is a trait we see among some people that is consistently self-destructive.
It is the inability to call it quits on a behavior, even though the behavior is no longer necessary for the survival of the person, and obviously self-destructive.
Drug dealers demonstrate this all the time. Despite having tens of millions of dollars in stash houses and personal accounts, they remain in the business long after they have amassed sufficient wealth to retire comfortably and provide for generations of their offspring. The same 'character flaw' is obvious in many businessmen. Politicians demonstrate it all the time.
Despite having been First Lady, with all that entails, HRC felt the need to become a US Senator. Then she went to Foggy Bottom - and despite more wealth than she would need for several lifetimes of opulent living, she could not stop herself. She cut deals using the power of her office for obscene personal gain. Here's the piece.
It becomes obvious that a mental flaw is driving such people to accumulate power, not wealth. At some point it is no longer about the money. Something in their brains refuses to permit them to sit back and relax comfortably. They must have control over the fate of other people - and that is a mental illness that should be culled from the gene pool.