This is a VERY Deep question subjectively speaking because not everyone's Characters are Buddhist. Though most of my characters are a mix between Shintoism and Buddhism. Although my characters aren't religiously inclined (as they are normally very busy) outside of SRP I am Buddhist myself so I do sometimes see myself applying the ethics and morals of my religion to all my characters. Like No indulging of Drugs & Alcohol, no Attacking or killing people, no lying, etc.
Thinking about it now I should be doing this more out of respect not only for the Religion itself but respect for myself...