Of course you wouldn’t be justified in harming a minimum wage worker because the policy of the corporation. That is like the opposite of the point.

That's a pretty obvious example of the point I was making when I said: "Something being wrong isn’t an immediate justification for whatever action a person takes in reaction."

Say my neighbor owns a company and exploits immigrants to do lawncare. Maybe I’d pay for it if I knew he was actually taking care of his workers and not exploiting them, but he sucks, boo. So while he is away on vacation I borrow his equipment without asking to do my own lawn. Does it hurt him? I mean technically there is more wear & tear on the equipment. Will he notice? No. Do I give a shit if it causes it to break faster than it would have otherwise? Nah, fuck him.

This feels like very self serving reasoning. I don't think you're actually justified in doing something along these lines. Even worse, you can actually cause more harm by doing this. Your wear and tear on your neighbors tools can make the jobs of the already exploited immigrants harder and if the tools break the immigrants may be blamed for it. This actually feels like another good example of my point above that a wrong does not automatically imply justification, regardless of how much it might benefit you personally.