> Theoretically a company like Amazon should be able to provide masks, goggles and health monitoring to its workers

Theoretically yeah, but practically Amazon is driven by people with short-term profits in mind, so you don't see this happening. In the ideal world, capitalists realizes that if their customers / workforce goes out of jobs because of sickness, they won't earn as much. But seems that's too much future thinking, so business are trying to extract as much value they can before they'll be forced to shut down.