I have found myself incredibly ill-equipped to navigate the moral maze of right and wrong, black and white with the countless shades of grey in-between thanks to being a Witness, even though I have always been relatively liberal in my views.
Witness thinking gives you the answers. Abortion - wrong. War - wrong. Sexual activity outside marriage - wrong. Blood transfusions - wrong. I thought I had reasons but ultimately those reasons were based on a position that the rest of world cannot afford to take because life is simply not black and white.
Take the doctrine away and those reasons become highly suspect. One cannot afford to let a decision be the result of dogma, tradition or reasons that ignore reality. You have to consider context, relativism and things like the greater good.
As Witnesses one can sit in an idealistic ivory tower, pontificating on why something is wrong whilst the rest of the world actually gets on with trying to balance all the variables and make choices that suit the collective best interest.
It is a direct result of this that it is so, so difficult for a Witness to logically consider an argument rationally, weigh it up, look at the pros and cons and go beyond doctrinal rhetoric. Instead, they sneer at "the world" and it's inability to be perfect, pouring their disdain on noble efforts to look for solutions to very difficult problems as a waste of time. Instead, they trust that somehow God is going to sort it all out and you can just sit back, take the good from society whilst condemning every effort made to inject a little bit of progress into society.