People form corporations because they're afraid of directly reaping the consequences if they do something wrong (aka "insulation from liabilities"), and they get advantages over other people (aka "better tax treatment"). Both are inherently destructive to society.
People need to reap the consequences of their actions, and to not have advantages over others.
They don't always get better tax treatment.
Often, this different treatment is to encourage reinvestment of profits.
Avoiding liability can be done for ill, but it can also serve good.
Corporations can be sanctioned for wrongful behavior without
making every stockholder liable for things beyond their control.
You say these are destructive things, but I find they make sense for
an economy. Where do you see a better system without corporations?