Heat Exposure In U.S. Has Led To Hundreds Of Worker Deaths Since 2010 : NPR

"We've seen that the costs of [non]compliance are so cheap," Widess said. "It pays not to comply."
https://www.npr.org/2021/08/17/1026154042/hundreds-of-workers-have-died-from-heat-in-the-last-decade-and-its-getting-worse