TLDR: The answer is deregulation that helped corporations at the expense of the consumers.

Ummm... I gotta agree with u/being-poisoned....your article clearly says excessive regulations along with the removal of the Gold Standard are to blame, this is the opposite of what you said...you should go back and actually read what you pasted.

Though personally, I think it was primarily removing the Gold Standard that is to blame, I doubt these particular regulations you refer to made much difference one way or the other, though I admit there is a serious lack of regulations in the banking and financial sector