I mean, being empathetic and using for evil... tale as old as the words' origins.

Empathy, but a lack of conscience allows one to feel for their opponent, assess their weaknesses, and exploit them.

I mean, possessing the capability for understanding harm and doing it anyway is a core characteristic of a "bad person." We don't blame a wild animal for attacking someone, at least not if you have two brain cells to rub together. I worked in Yellowstone. We had bears in civilian areas on a few occasions. I was off the clock, but didn't want to see people hurt, so I helped the park rangers clear the area of tourists, and got the fuck out of the way when they were actually trying to corral the bear (juvenile) and relocate it to a deeper part of the park away from humans.

~~Black Hat Hackers~~ Social engineers, con men, what have you, all revolve around empathetic traits.

Again, people, as an example... A knife is a tool. I carry one every day. Usually, I open boxes, break down boxes, use it as a lever (my "tool" knife EDC is robust and cheap as shit. If it breaks, it breaks, I've gotten a couple decades out of it so far) and more. After 20 years or more of service, it has more than paid for itself, we're looking at like a dollar year here.

Now the knife no one ever sees except my wife (because I disrobe in front of her) is designed for self defense. That one is a weapon. Its only purpose is self defense. It isn't unsheathed unless I'm checking it for maintenance reasons, or I need to defend myself. Thankfully, the later has not happened since I've purchased it. However, in an emergency? Its a sharp blade of good materials. It could be used for other reasons, just at its price point I prefer not to. Awkward grip for a traditional knife usage, but it could be used for an emergency trach if the need arose. Though, that may just be a consideration because of my first aid training.

Both knives serve vastly different purposes for me.

At the end of the day, they're a tool though. I could bash someone in the head with a claw hammer as easily as I built a house - except I know nothing about building a house, lol.