My experience with the US health care system is that there is a wide gulf in health benefits. When I worked for Microsoft in the late 2000s(as an employee, not as "dash trash", as contractors were called), I paid some very small premium like $10-20/month for a plan with 0 deductible, 0 copay, and pretty much every doctor was in network and covered at 100%. When I dislocated my shoulder, some orthopedic surgeon who used to consult for an NBA team looked at it for me.
I understand that that was considered quite good insurance and that most people in the USA don't get that level of care, much less at that price.
If you read Glassdoor reviews of Cognizant, people complain about the insurance offerings available to employees. https://www.homebaseiowa.gov/sites/homebaseiowa.gov/files/do... looks like it might be what they offered 2 years ago. It doesn't look very good to me. If I was earning $15/hour, I think I'd pretty much buy the cheapest plan and only use it if I was actively bleeding to death.
I'll also link to https://www.theguardian.com/news/2017/may/25/facebook-modera... again - it describes how other companies that moderate distressing content approach this. It includes the company paying for psychological treatment, including after the employee leaves the company.