I was once asked by a college friend, here's the scenerio:

If the boat carrying you, your parents and your son sinks, who do you save first?

By our upbringing, of course parents. It is the right thing to do, we all know it. But think logically, if there was a logical explantion and NOT "emotional" attachment (no emotional feelings at all), it is worth saving your old parent over your younger son? Isn't it a symbolic of saving PAST(parents) over FUTURE(son)? I was shocked when he asked me this and the explanation of how how some social reasoning reflect where they're now. Some culture in a different way prefers to save the son. There's NO right and wrong here. Does Our RIGHT makes us better than them. What am trying to say is our society has too much of emotional interpretation of your realtionship withing our family, not saying other cultures do not, it's just we take it too far and it reflects where we are now. We're taught to obey and listen your elders, never allowed to question. Is it healthy? Our country is ruled by old folks and never by younger leaders (old people thinking younger generation not mature or even worth enough to lead). We live with our PAST, obey it and carry it along with you into FUTURE. Is that working?

Conflicting with your parents does not make you a bad son/daughter. Period. I think, infact, you're a better person if you question them with issues realted to the welfare of mankind, not just obey them like a person with no conscious.