It would be quite difficult to come up with society cases as this issues are wide spread and sometimes not made public. You can do a personal survey around you locale.
Look like you never owned/used a bank account, quite surprising in 2018
Any idiot with a 1-month-old bank account could give you a lot of cases. Anyone watching the news could too. Centralization kills the society, not only in the banking industry, and it can't flourish
(How Centralization Is Paralyzing Society
https://thesciencepage.com/how-centralization-is-paralyzing-society/)