"Someone who followed every known rule perfectly still died horribly" should especially give the people who get cavalier about the known rules some pause.
I don't know. It doesn't do it for me. It makes me think "why bother with all this crap if. Even if you do them and you will die a sad and painful death".
There are much simpler, cleaner stories if you want to impart a message about the importance of PPE: Barry Weatherall was cleaning a pipe with sulphuric acid. He used PPE initially while performing the procedure, but removed it to do some paper work, and then went back to check on the progress without PPE. The acid exploded in his face and he become blind for life.[1]
It is a sad true story. Much cleaner than the Karen Wetterhahn one.
The message of the Karen Wetterhahn incident is "don't assume that just because you have PPE it is the right PPE for that task". While the message of the Barry Weatherall story is "wear your PPE".