Contributing nothing isn't even the worst case. There are also people who make their fortunes costing society. The Sackler family made insane amounts of wealth as literal serial killers. The CEO of Nestlé make a ton of money killing babies. The folks at DuPont made huge profits knowingly poisoning people (and ultimately the entire planet). Some of the wealthiest individuals are also the most sick and dangerous people who have ever existed and are responsible for incalculable damages to society. The worst part is that they usually bribe their way out of any actual accountability for what they do.