It's a small, very exclusive club. Deliberately contracting it is "taking a hit for the team". Aside from the "exclusivity", they'd infect us all if they could; "now you know how it feels".
I don't see Amanpour rushing out to join the "heroes".
And they've done exactly that before, too. I can just about guarantee you every large municipal police dept., fire dept., and ambulance service has a list of "known spitters". My dad spent 20 years as a fireman (contrary to popular perception, the bulk of their calls were of a medical nature) and he said they all knew where certain infamous HIV+ "citizens" were domiciled because they had a habit of aggressively spitting on emergency personnel in an effort to spread their disease.
I don't think anyone has ever contracted it in that manner, but still. The intent is certainly there. There's a reason emergency personnel have to get frequent anti-Hepatitis shots and regular testing for other "workplace hazards".
There's some real, genuine human garbage out there. Your local cop, fireman, or EMT almost certainly has multiple stories.