Plothole: Ernesto dela Cruz stole from the dead too

Just rewatched Coco again for the hundredth time and I only now noticed this plot hole.

In the story, Miguel is cursed from stealing from the dead. However, Ernesto dela Cruz did something much much worst, he murdered and stole from the dead, he murdered Hector, stole his guitar, stole his music and became famous because of it, so dela Cruz also stole his fame, yet Ernesto was never cursed at all.