Japan is a very servile society that attaches importance to business. Bushido is actually a kind of transaction, which combines the two characteristics of commerce and servility, forming an educational propaganda means to safeguard kingship.

The core doctrine of Bushido: "Obey the master unconditionally and die. After death, you can enter the shrine and become a god."

This is a transaction, and it is very cost-effective. It's easy to die, but it's easy and natural to be a god and obey your master.