Not all machinery is harmful. As you have indicated yourself.

Motivating people to construct less harmful systems would be a healthy selective pressure.

Nobody in their right mind is interested in destroying someone's wheel chair, crutches, eyeglasses, or dialysis machine.

If an apparatus is used to violate the social contract and deliberately harm others obviously enough for us to actually casually perceive it happening without even looking for it specifically, it's fairly obvious that it needs to be disassembled with extreme prejudice.