United States v. Petty Motor Co., 327 U.S. 372, 377-78 (1946); United States v. 50 Acres of Land (Duncanville), 469 U.S. 24, 33 (1984); see also United States v. Chandler-Dunbar Water Power Co., 229 U.S. 53, 76 (1913) (“These additional values represent, therefore, no actual loss, and there would be no justice in paying for a loss suffered by no one in fact.”).