No it was unfortunately serious.
> people are often hurt
If you still believe that any business still cares about this you haven't been paying attention. If you are not at the top, you are just a cog in a machine and will be treated as such. You are just a human resource, a resource that is one of the largest, if not the largest, singly money drain.
As I said, left to their own devices a business does not have any moral duty and the only fiscal duty they pursue is maximizing profits for themselves.
Your question (which, I now take it, was intended to express businesses' attitudes rather than your own) was "why should the business care?". I agree that they commonly don't, and that there are structural reasons why they commonly don't. But I think most would say that they should.
> why should the business care specially about this resource type?
Because people are often hurt when they are "sold or retired to save money" whereas, so far at least, other "resources" don't have that capacity.
This is also the reason why, generally, people cannot be explicitly bought or sold as other resources can. This is widely considered a Good Thing, although indeed an idealized amoral business (or its owners) might well think it unfortunate.