When you look at the broader picture, this is perfectly normal in Japan. In fact, it's socially accepted to bully and break those beneath you (sickos). Not saying it's any better in any part of the world, but it's a cultural thing over yonder.
Beating down on the little guy is the national sport.
Funny thing is... this is basically one of the core elements behind the slow death of the country. It's gotten so bad (old people linger and the young don't have kids) that the prime minister basically got himself a nice fat retirement paycheck and invited BlackRock to partake in the "change" that the country is trying to do in becoming more "international".
That's like posting your life savings account info on 4chan.