When you start to reduce life down to simplistic concepts, everything is not relative and cultural. Sure, maybe on the fringes (.01%) there are situations that are heavily influenced by those. But for most things in life (near or on mazlowe's hierarchy) it is almost like math, or a logic puzzle.
Brazilians don't leave uncovered holes in the street because of something entirely logical within their own culture. They leave because they are lazy and do not care for the level of danger it represents to others. To imply otherwise is simply dressing a pig.