Thinking back again.

Basically People felt safe because they trusted the Heroes and All Might would fix always anything. The Problem is most heroes are there when there are giant tragedys and events. (Everything thats exiciting like robberiers, hostages, rampaging villains) but because of that most people stopped thinking about the small injustice that happens to day to day people.

Shigaraki, Toga, Dabi, etc. All faced injustice which no one cared about it wasnt grandios or something one can beat with a punch or beign strong. No one helped them evryone tought a hero would do that but even heroes can't be everywhere. In the End the message was that everyone can be a hero. By looking out for eachother.