If Apple had to dump toxic waste in river or fund murderous paramilitaries to make their phones, that's exactly what they would do. And people would keep buying their stuff, because, well, nobody has clean hands. There's no difference between Apple and Dow or Chiquita. They just happen to be in a business that don't require them to do those things
Except, you know, use exploitative labor, export the environmental pollution elsewhere, appease authoritarians while thumbing their nose at democratically elected governments, etc.