Lots of interesting viewpoints, thank you for sharing!
My main point is that from the viewpoint of an infected main character, this isn't as simple as this evil or that evil. Ultimately, it's about survival at the start.
The player is thrust into a role of an infected carrier, and all good aligned characters opt for killing them on sight IF aware of their affliction even if you are a good character.
The confrontation with Nettie shows that if any other member of the grove suspected you were infected, then you would be next on the table being dissected with the dead drow.
I love how many ways there are for players to impact and learn/change the story.