From greeting someone with a bow
to removing shoes before entering a home (or temple or occasional restaurant),
every social act is completed with consideration for others
Titles (sun, sama, kun and chan) are used as suffixes to honor whoever someone is speaking to.
There is an expectation #a.k.a social pressure and fear of ostracism # that members of society will act with a certain level of etiquette and decorum.
The Japanese take pride in their rituals,
When walking through Japan, garbage cans are no where to be found.
which leads to practically spotless streets and a highly efficient recycling system.
In fact, nearly all Japanese manufacturers pride themselves on energy efficiency and zero-landfill waste policies.
The Japanese also prefer to save their money rather than spend it on items they don't need.