I think some people (like you) have opens minds, because they have realized that there is no point in insisting on wrong things, especially when those wrong things lead us to make wrong decisions.
You probably did not have any significant preexisting opinions about those subjects, then. When people already have an opinion about something, a mere explanation of a contrarian viewpoint will mostly accomplish nothing.
Of course, you might be the great exception, a perfectly reasoning actor, which we hear so much about in thought experiments.