Capitalism rewards short-term thinking, so dumb ghouls who ignore long-term consequences of their actions outcompete smart ghouls who try to ensure that they stay in power longer.

I feel like you have to have some level of empathy to truly be intelligent enough for that

Do they get outcompeted by an invasive species of dorks?

literally yes. If they don't cut costs as much as possible for reinvestment and stock buybacks to inflate value some ghoul who will outcompetes and cannibalizes them. Maintaining their personal highfalutin ostentatious lifestyle also includes all of the high-ticket sociopath-networking parties and bribery-and-blackmail backroom events et al. which can cut them out of opportunities and plans and end up with them being stabbed in the back and cannibalized. It's a world of monsters who have no genuine feelings or genuine human connections and are incapable of ever treating anything as non-transactional, who wet their teeth with the blood spilled from their razor thin margins and climb up on the backs of previous 'partners' and 'friends' the minute they can. they are inherently self-destructive in all these ways and more; and this fact, along with the fact that the revolutionary proletarian class outnumbers them by astronomic and always-exponentially-increasing amounts is why communism will win; regardless of what shape they leave the planet in, they will fall to those left.