Sure- America was built without regulations.
https://www.history.com/topics/early-20th-century-us/triangle-shirtwaist-fire
On March 25, 1911, the Triangle Shirtwaist Company factory in New York City burned, killing 145 workers. It is remembered as one of the most infamous incidents in American industrial history, as the deaths were largely preventable–most of the victims died as a result of neglected safety features and locked doors within the factory building. The tragedy brought widespread attention to the dangerous sweatshop conditions of factories, and led to the development of a series of laws and regulations that better protected the safety of workers.
And Americans died because of it.
Capitalism does work- but a pure capitalism does not care at all about the health of the labor- only what produces the most profits. The history of America is rife with examples of companies who put profits ahead of worker safety. And workers died because of it- virtually every industry- coal, railroads, oil, chemicals.
Oh and before the safety of consumers too. Think food safety- water safety- polution.