When the environment protests by exhibiting intolerable degradation, the principal malefactors customarily dodge responsibility. Their captive designers abdicate. Corporate clout influences politics. This corruption also disrupts the apparatus of balance and redress. We and our Earth suffer.
Corruption also reduces incentive for the clear, comprehensive thinking necessary for good design.
Look around you. The latter task is a bit easier, but your candidate still represents a minority. It's probably a tool, toy, weapon, or object that would cause unacceptable functional problems if ineptly designed. Like their designers, you probably haven't considered all aspects of your favorites. Those that don't are considered weird, and are used as textbook examples of why innovation, courage, and in particular, altruism are to be avoided.