The "absolute risk reduction" and NNT numbers seem pretty useless, since they are in a context where people are trying their best to avoid getting infected with

The "absolute risk reduction" and NNT numbers seem pretty useless, since they are in a context where people are trying their best to avoid getting infected with isolation, masks, distancing, etc. Once the vaccine rolls out, people will return to previous habits and without the vaccine a large percentage of the population would be infected, so these numbers look completely different (i.e. absolute risk reduction of at least 45% from 50% to 0-5%, and NNT of something like 3-to-1 to 10-to-1).