I'm with Casper and Watchdog on this one, safety is paramount in aviation and overrides any and all other considerations! No 'ifs' and 'buts', period.
If cultural considerations are a well known contributor to serious accidents, the world's aviation powers must be lobbied and persuaded to address these issues by mandating drill training and examinations of known situations in which going against cultural norms could endanger the safety of a flight.
Examples could be extending the syllabus (and exams) in the ATPL and CPL human factor theory topics, and devising and mandating simulator exercises that are mandatory pass/fail items for flight crew.
Not doing so is tantamount to refusing to develop as human beings, and exposes travelers around the world to unnecessary risk and suffering.