It is hard to calculate what the damage is to your organization from bad press.
One bad news article about an employee being arrested for theft or other crimes against your company can result in untold amounts of money being lost by your group. That includes damage to your brand and possible added scrutiny from professional licensing boards, law enforcement, or government regulators.
Sometimes pursuing an employee via the civil court system is the right course of action.
Our Principal, David Hoover, has routinely assisted organizations that choose to recoup their losses civilly instead of having the employee arrested. Mr. Hoover routinely consulted with a Fortune 50 company in regard to this as well as other investigations.