There is a category for EPs who were saved by heroes. However, I'm interested in the opposite example where an PE saved a hero.
That could be just by pragmatism or took place during a time when the villain was more sympathetic or was even a former hero like with Griffith who saved Casca from being raped and who saved Guts' life several times.
This would also be preferable if in the example, the hero saved is a Pure Good.