I believe you're missing forest for the trees. Some other commenters in this thread actually gave better explanation but think practically about this. The pros

I believe you're missing forest for the trees. Some other commenters in this thread actually gave better explanation but think practically about this. The prosecutors are not stupid. They have to come up with charges that actually stick, otherwise they risk losing this case in a spectacular fashion. If they went with an angle "X is morally bankrupt and her actions caused some deaths", it would make so much harder to prove and get the jury to agree to it.