For me, one of the worst things someone can do to me is defer to my judgment when they think I am wrong. If I subsequently find out that I was wrong, it sort of feels like they are lying to me. I think this is even worse if they then, without telling me, go and do the right thing.

This doesnot apply if we've argued about it, and they say something like "Ok, we'll try it your way." Then they are being honest about disagreeing.