It's hard to know whether the elderly and the ill are simply the first wave of casualties or not.
[0] https://www.theguardian.com/world/2020/feb/06/whistleblower-...
I'd figure they would get exposed more quickly, but the outcome would be, on average, the same as anyone else. Perhaps the stress of working during a health crisis exacerbates the disease, or perhaps they have a more active immune system from constant exposure to new pathogens?
One fascinating thing they mentioned is that a large number of people in China smoke, especially among the elder generation that is experiencing the highest mortality rate. On the podcast, they mentioned that this is essentially a comorbidity, because your lungs are already partially shot by the time you get Covid-19 (and then viral pneumonia).