Rabies most probably evolved from a virus from plants so is very "alien" to animals. As long as can hide in their main host, it does not care about killing ever

Rabies most probably evolved from a virus from plants so is very "alien" to animals. As long as can hide in their main host, it does not care about killing everybody else (if accidentally ends in the wrong place). This can be also and advantage and selected by evolution in some cases ("enemy of my host is my enemy" situations).