by hypercubeBy that definition, I could most likely find a way to describe nearly any act of will as evil, whether directly (confining a person and depriving him of his will is harmful to that person, therefore putting criminals in prison is evil) or indirectly through "butterfly effect" thought (convincing a woman to leave her abusive husband snapped his mind and he went to work and shot 3 people) so I'm not sure about the logic of using "causes harm" as evil.
If you ask me, the rule of law itself is evil. There is also the cause for greater good. A criminal knows the risks of getting caught and locked up is part of that. They willed their actions knowing the price they must pay for getting caught. For most, prison is a purification of the self. I know quite a few people who been to jail, and today, they are quite successful.
Convincing people to detach or leave others against their will, just doesn't happen. I can almost promise that. But yes, as long as it's in imposition of their will, it is an evil act to intervene in that way. The husband went psycho and she wishes to stay with him. It's the individual who makes her choices, not her friends.
Perhaps "intent to cause harm" might work better. And even then, that would be your opinion. It's probably an opinion you share with the majority. Though you might not always agree on the definition of 'harm,' or the definition of 'intent' for that matter.
Your over thinking the simple.
Intent to cause harm = Imposition of will. Every time.