We live in a global society and it seems the proverb 'when in Rome' applies less and less. International organisations (be it a software company or automobile manufacturers) put in a great effort to shape rules and norms acceptable for all the participants, from different backgrounds. Be a person secular or religious and regardless of his place of origin, the same rules apply.
People travel a lot. A person may work at a company which can send him to different locations (Singapore, Kenya then Azerbaijan to assist clients.)
Therefore, I think if the question doesn't ask specifically about local customs in say, Afghanistan or North Dakota, maybe we shouldn't pressure the OP to narrow down the question to a specific group. After all, if one is curious about a specific group, the asker will probably include that specific detail in the question.
I, for example added 'in western culture' to my question, though I travel a lot and I was curious about global norms. I did it, because an user was particularly insistent that I narrow it down:
" Where are you? Can you limit this to a certain group of people?
Right now your question seems like you're asking what each individual on the site thinks and I don't think there's one "correct" answer."
I realize that 'global' questions may have more than one 'correct' answer, but as I think there is no such thing as a "single correct answer" to the type of questions asked on this stack anyway, it's no big problem.
Even questions which aren't about international NGO's, but simple ones like "how should i handle the cleaning lady stealing small items?" probably can have good tips from people all around the world. So why insist to narrow it down to a particular country?