When a company engages in systemic risk, it discounts that risk by the amount of the system the company doesn't occupy (e.g. if Goldman does something that will

When a company engages in systemic risk, it discounts that risk by the amount of the system the company doesn't occupy (e.g. if Goldman does something that will create a 10% chance of a $100 billion dollar loss, spread evenly across the financial industry as a whole, and if Goldman only makes up 5% of the industry, Goldman will only take into consideration a 10% chance at a $5 billion loss. The other $95 billion isn't their problem and their shareholders could sue members of the board if the board allowed the company to take it into account).