Hopefully the unethical organization develops a reputation for being unethical. Then only unethical people will patronize said organization. Ideally, unethical behaviour leads to marginalization, though obviously that does not always happen in practice.
Samsung are a strong counter-example. They're been caught red handed doing all sorts of truly nasty stuff. Pretty much anything Apple has even been suggested as doing, they've been enthusiastically up to their eyeballs in and a lot more, but they seem to just shrug off the negative press like water off a duck's back.
I think once a company develops a reputation like that, most people just get desensitised to it. Also there is a degree to which lower cost products get a pass, because hey, they must be cutting corners somewhere.