There was never a rules-based order on the whole. Something like that has existed for various brief moments in time in various industries throughout the 20th century, but it has never been the norm. We as human society are fighting the same fight that we have been fighting since the beginning of the industrial revolution. Progress is measured on the scale of decades at best.

I agree with what you think needs to change, but I don't think anyone should be confused about corporations in the past somehow being more ethical than they are today.