Woman at work may be close to dying.

[Marine]

Oh and using her corpse for a steam-run turbine wouldn't provide enough energy to cover the cost of the travel to the turbine. How is that looking out for the greater good?

There's plenty of economic and demographic bonuses to burning corpses. There's more buried people than living, so the potential to create substantial power could be obtained overlooking the moral consequence of taking a rotting body out of the ground. Even better, you free up more land for development.

Cemeteries would be a thing of the past, the land used for more pressing needs to a growing populace like schools, malls, homes, and others. People would accelerate the population without excavating and deforesting acres of untouched land.

The untouched land continues to be refuge for endagered species so they can populate their numbers once more. New strains of plants and bacteria from these lands could produce vaccinations and more medicines for the people, which would live longer than those previously in the ground. So yea, dead people can help the greater good.